Home / 868,371,052.28-1,302,812,162.78-315,664,768.71

Finding the Fourth Proportional to 868,371,052.28, 1,302,812,162.78 and 315,664,768.71

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Solution

The fourth proportional to 868,371,052.28, 1,302,812,162.78 and 315,664,768.71 is: 473,590,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,371,052.28 : 1,302,812,162.78 = 315,664,768.71 : x
  2. Step 2: Convert to fraction form
    868,371,052.28/1,302,812,162.78 = 315,664,768.71/x
  3. Step 3: Cross multiply
    868,371,052.28x = 1,302,812,162.78 × 315,664,768.71
  4. Step 4: Simplify right side
    868,371,052.28x = 411,251,900,034,945,280
  5. Step 5: Solve for x
    x = 411,251,900,034,945,280/868,371,052.28
  6. Step 6: Final answer
    x = 473,590,061.48

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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.