Home / 425,683,428,746.70-638,526,799,713.55-102,985,724,503.29

Finding the Fourth Proportional to 425,683,428,746.70, 638,526,799,713.55 and 102,985,724,503.29

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Solution

The fourth proportional to 425,683,428,746.70, 638,526,799,713.55 and 102,985,724,503.29 is: 154,478,987,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,683,428,746.70 : 638,526,799,713.55 = 102,985,724,503.29 : x
  2. Step 2: Convert to fraction form
    425,683,428,746.70/638,526,799,713.55 = 102,985,724,503.29/x
  3. Step 3: Cross multiply
    425,683,428,746.70x = 638,526,799,713.55 × 102,985,724,503.29
  4. Step 4: Simplify right side
    425,683,428,746.70x = 65,759,145,083,267,092,316,160
  5. Step 5: Solve for x
    x = 65,759,145,083,267,092,316,160/425,683,428,746.70
  6. Step 6: Final answer
    x = 154,478,987,535.12

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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.