Home / 90,636,894.41-135,955,217.07-42,088,200.21

Finding the Fourth Proportional to 90,636,894.41, 135,955,217.07 and 42,088,200.21

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Solution

The fourth proportional to 90,636,894.41, 135,955,217.07 and 42,088,200.21 is: 63,132,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636,894.41 : 135,955,217.07 = 42,088,200.21 : x
  2. Step 2: Convert to fraction form
    90,636,894.41/135,955,217.07 = 42,088,200.21/x
  3. Step 3: Cross multiply
    90,636,894.41x = 135,955,217.07 × 42,088,200.21
  4. Step 4: Simplify right side
    90,636,894.41x = 5,722,110,395,636,169
  5. Step 5: Solve for x
    x = 5,722,110,395,636,169/90,636,894.41
  6. Step 6: Final answer
    x = 63,132,242.48

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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.