Home / 31,106,203,827.52-42,921,943,522.20-18,892,553,192.40

Finding the Fourth Proportional to 31,106,203,827.52, 42,921,943,522.20 and 18,892,553,192.40

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Solution

The fourth proportional to 31,106,203,827.52, 42,921,943,522.20 and 18,892,553,192.40 is: 26,068,918,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106,203,827.52 : 42,921,943,522.20 = 18,892,553,192.40 : x
  2. Step 2: Convert to fraction form
    31,106,203,827.52/42,921,943,522.20 = 18,892,553,192.40/x
  3. Step 3: Cross multiply
    31,106,203,827.52x = 42,921,943,522.20 × 18,892,553,192.40
  4. Step 4: Simplify right side
    31,106,203,827.52x = 810,905,101,114,352,074,752
  5. Step 5: Solve for x
    x = 810,905,101,114,352,074,752/31,106,203,827.52
  6. Step 6: Final answer
    x = 26,068,918,779.38

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Double scale
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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.