Home / 64,976,368.47-89,664,819.18-38,855,321.61

Finding the Fourth Proportional to 64,976,368.47, 89,664,819.18 and 38,855,321.61

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Solution

The fourth proportional to 64,976,368.47, 89,664,819.18 and 38,855,321.61 is: 53,618,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,976,368.47 : 89,664,819.18 = 38,855,321.61 : x
  2. Step 2: Convert to fraction form
    64,976,368.47/89,664,819.18 = 38,855,321.61/x
  3. Step 3: Cross multiply
    64,976,368.47x = 89,664,819.18 × 38,855,321.61
  4. Step 4: Simplify right side
    64,976,368.47x = 3,483,955,386,341,396.50
  5. Step 5: Solve for x
    x = 3,483,955,386,341,396.50/64,976,368.47
  6. Step 6: Final answer
    x = 53,618,807.40

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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.