Home / 425,683,428,746.93-638,526,799,713.87-102,985,724,503.49

Finding the Fourth Proportional to 425,683,428,746.93, 638,526,799,713.87 and 102,985,724,503.49

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Solution

The fourth proportional to 425,683,428,746.93, 638,526,799,713.87 and 102,985,724,503.49 is: 154,478,987,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,683,428,746.93 : 638,526,799,713.87 = 102,985,724,503.49 : x
  2. Step 2: Convert to fraction form
    425,683,428,746.93/638,526,799,713.87 = 102,985,724,503.49/x
  3. Step 3: Cross multiply
    425,683,428,746.93x = 638,526,799,713.87 × 102,985,724,503.49
  4. Step 4: Simplify right side
    425,683,428,746.93x = 65,759,145,083,427,759,325,184
  5. Step 5: Solve for x
    x = 65,759,145,083,427,759,325,184/425,683,428,746.93
  6. Step 6: Final answer
    x = 154,478,987,535.41

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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.