Home / 90,221,110.26-124,026,478.68-77,616,166.74

Finding the Fourth Proportional to 90,221,110.26, 124,026,478.68 and 77,616,166.74

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Solution

The fourth proportional to 90,221,110.26, 124,026,478.68 and 77,616,166.74 is: 106,698,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,221,110.26 : 124,026,478.68 = 77,616,166.74 : x
  2. Step 2: Convert to fraction form
    90,221,110.26/124,026,478.68 = 77,616,166.74/x
  3. Step 3: Cross multiply
    90,221,110.26x = 124,026,478.68 × 77,616,166.74
  4. Step 4: Simplify right side
    90,221,110.26x = 9,626,459,849,401,934
  5. Step 5: Solve for x
    x = 9,626,459,849,401,934/90,221,110.26
  6. Step 6: Final answer
    x = 106,698,530.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.