Home / 99,076,555.20-148,614,832.80-64,639,178.40

Finding the Fourth Proportional to 99,076,555.20, 148,614,832.80 and 64,639,178.40

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Solution

The fourth proportional to 99,076,555.20, 148,614,832.80 and 64,639,178.40 is: 96,958,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,076,555.20 : 148,614,832.80 = 64,639,178.40 : x
  2. Step 2: Convert to fraction form
    99,076,555.20/148,614,832.80 = 64,639,178.40/x
  3. Step 3: Cross multiply
    99,076,555.20x = 148,614,832.80 × 64,639,178.40
  4. Step 4: Simplify right side
    99,076,555.20x = 9,606,340,690,245,372
  5. Step 5: Solve for x
    x = 9,606,340,690,245,372/99,076,555.20
  6. Step 6: Final answer
    x = 96,958,767.60

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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.