Home / 82,942,256.60-124,413,384.90-42,127,587.80

Finding the Fourth Proportional to 82,942,256.60, 124,413,384.90 and 42,127,587.80

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Solution

The fourth proportional to 82,942,256.60, 124,413,384.90 and 42,127,587.80 is: 63,191,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,942,256.60 : 124,413,384.90 = 42,127,587.80 : x
  2. Step 2: Convert to fraction form
    82,942,256.60/124,413,384.90 = 42,127,587.80/x
  3. Step 3: Cross multiply
    82,942,256.60x = 124,413,384.90 × 42,127,587.80
  4. Step 4: Simplify right side
    82,942,256.60x = 5,241,235,795,869,944
  5. Step 5: Solve for x
    x = 5,241,235,795,869,944/82,942,256.60
  6. Step 6: Final answer
    x = 63,191,381.70

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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.