Home / 104,254,319.43-143,360,777.43-90,479,368.71

Finding the Fourth Proportional to 104,254,319.43, 143,360,777.43 and 90,479,368.71

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Solution

The fourth proportional to 104,254,319.43, 143,360,777.43 and 90,479,368.71 is: 124,418,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,254,319.43 : 143,360,777.43 = 90,479,368.71 : x
  2. Step 2: Convert to fraction form
    104,254,319.43/143,360,777.43 = 90,479,368.71/x
  3. Step 3: Cross multiply
    104,254,319.43x = 143,360,777.43 × 90,479,368.71
  4. Step 4: Simplify right side
    104,254,319.43x = 12,971,192,639,641,216
  5. Step 5: Solve for x
    x = 12,971,192,639,641,216/104,254,319.43
  6. Step 6: Final answer
    x = 124,418,755.12

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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.