Home / 145,668,493.27-201,020,142.85-79,587,569.40

Finding the Fourth Proportional to 145,668,493.27, 201,020,142.85 and 79,587,569.40

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Solution

The fourth proportional to 145,668,493.27, 201,020,142.85 and 79,587,569.40 is: 109,829,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,668,493.27 : 201,020,142.85 = 79,587,569.40 : x
  2. Step 2: Convert to fraction form
    145,668,493.27/201,020,142.85 = 79,587,569.40/x
  3. Step 3: Cross multiply
    145,668,493.27x = 201,020,142.85 × 79,587,569.40
  4. Step 4: Simplify right side
    145,668,493.27x = 15,998,704,569,872,290
  5. Step 5: Solve for x
    x = 15,998,704,569,872,290/145,668,493.27
  6. Step 6: Final answer
    x = 109,829,546.60

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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.