Home / 103,013,901.30-142,159,151.27-56,607,144.58

Finding the Fourth Proportional to 103,013,901.30, 142,159,151.27 and 56,607,144.58

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Solution

The fourth proportional to 103,013,901.30, 142,159,151.27 and 56,607,144.58 is: 78,117,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,013,901.30 : 142,159,151.27 = 56,607,144.58 : x
  2. Step 2: Convert to fraction form
    103,013,901.30/142,159,151.27 = 56,607,144.58/x
  3. Step 3: Cross multiply
    103,013,901.30x = 142,159,151.27 × 56,607,144.58
  4. Step 4: Simplify right side
    103,013,901.30x = 8,047,223,629,630,197
  5. Step 5: Solve for x
    x = 8,047,223,629,630,197/103,013,901.30
  6. Step 6: Final answer
    x = 78,117,841.65

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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.