Home / 15,779,812,171.18-21,778,307,263.35-9,675,084,822.58

Finding the Fourth Proportional to 15,779,812,171.18, 21,778,307,263.35 and 9,675,084,822.58

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Solution

The fourth proportional to 15,779,812,171.18, 21,778,307,263.35 and 9,675,084,822.58 is: 13,352,945,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,812,171.18 : 21,778,307,263.35 = 9,675,084,822.58 : x
  2. Step 2: Convert to fraction form
    15,779,812,171.18/21,778,307,263.35 = 9,675,084,822.58/x
  3. Step 3: Cross multiply
    15,779,812,171.18x = 21,778,307,263.35 × 9,675,084,822.58
  4. Step 4: Simplify right side
    15,779,812,171.18x = 210,706,970,065,121,345,536
  5. Step 5: Solve for x
    x = 210,706,970,065,121,345,536/15,779,812,171.18
  6. Step 6: Final answer
    x = 13,352,945,382.33

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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.