Home / 66,514,873.60-99,697,660.80-28,169,862.40

Finding the Fourth Proportional to 66,514,873.60, 99,697,660.80 and 28,169,862.40

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Solution

The fourth proportional to 66,514,873.60, 99,697,660.80 and 28,169,862.40 is: 42,223,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,514,873.60 : 99,697,660.80 = 28,169,862.40 : x
  2. Step 2: Convert to fraction form
    66,514,873.60/99,697,660.80 = 28,169,862.40/x
  3. Step 3: Cross multiply
    66,514,873.60x = 99,697,660.80 × 28,169,862.40
  4. Step 4: Simplify right side
    66,514,873.60x = 2,808,469,386,337,873.50
  5. Step 5: Solve for x
    x = 2,808,469,386,337,873.50/66,514,873.60
  6. Step 6: Final answer
    x = 42,223,178.58

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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.