Home / 66,172,029.60-99,258,044.40-47,890,459.20

Finding the Fourth Proportional to 66,172,029.60, 99,258,044.40 and 47,890,459.20

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Solution

The fourth proportional to 66,172,029.60, 99,258,044.40 and 47,890,459.20 is: 71,835,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172,029.60 : 99,258,044.40 = 47,890,459.20 : x
  2. Step 2: Convert to fraction form
    66,172,029.60/99,258,044.40 = 47,890,459.20/x
  3. Step 3: Cross multiply
    66,172,029.60x = 99,258,044.40 × 47,890,459.20
  4. Step 4: Simplify right side
    66,172,029.60x = 4,753,513,325,609,989
  5. Step 5: Solve for x
    x = 4,753,513,325,609,989/66,172,029.60
  6. Step 6: Final answer
    x = 71,835,688.80

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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.