Home / 25,127,938,763.70-37,691,908,145.55-21,258,103,499.70

Finding the Fourth Proportional to 25,127,938,763.70, 37,691,908,145.55 and 21,258,103,499.70

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Solution

The fourth proportional to 25,127,938,763.70, 37,691,908,145.55 and 21,258,103,499.70 is: 31,887,155,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,127,938,763.70 : 37,691,908,145.55 = 21,258,103,499.70 : x
  2. Step 2: Convert to fraction form
    25,127,938,763.70/37,691,908,145.55 = 21,258,103,499.70/x
  3. Step 3: Cross multiply
    25,127,938,763.70x = 37,691,908,145.55 × 21,258,103,499.70
  4. Step 4: Simplify right side
    25,127,938,763.70x = 801,258,484,459,287,478,272
  5. Step 5: Solve for x
    x = 801,258,484,459,287,478,272/25,127,938,763.70
  6. Step 6: Final answer
    x = 31,887,155,249.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.