Home / 15,778,121,005.69-21,774,491,431.37-8,737,590,637.69

Finding the Fourth Proportional to 15,778,121,005.69, 21,774,491,431.37 and 8,737,590,637.69

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Solution

The fourth proportional to 15,778,121,005.69, 21,774,491,431.37 and 8,737,590,637.69 is: 12,058,254,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778,121,005.69 : 21,774,491,431.37 = 8,737,590,637.69 : x
  2. Step 2: Convert to fraction form
    15,778,121,005.69/21,774,491,431.37 = 8,737,590,637.69/x
  3. Step 3: Cross multiply
    15,778,121,005.69x = 21,774,491,431.37 × 8,737,590,637.69
  4. Step 4: Simplify right side
    15,778,121,005.69x = 190,256,592,471,199,645,696
  5. Step 5: Solve for x
    x = 190,256,592,471,199,645,696/15,778,121,005.69
  6. Step 6: Final answer
    x = 12,058,254,110.40

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Double scale
Find fourth proportional to 15,778,121,006.69, 21,774,491,432.75 and 8,737,590,638.69
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.