Home / 145,152,001.80-217,728,002.70-87,709,134.60

Finding the Fourth Proportional to 145,152,001.80, 217,728,002.70 and 87,709,134.60

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Solution

The fourth proportional to 145,152,001.80, 217,728,002.70 and 87,709,134.60 is: 131,563,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,001.80 : 217,728,002.70 = 87,709,134.60 : x
  2. Step 2: Convert to fraction form
    145,152,001.80/217,728,002.70 = 87,709,134.60/x
  3. Step 3: Cross multiply
    145,152,001.80x = 217,728,002.70 × 87,709,134.60
  4. Step 4: Simplify right side
    145,152,001.80x = 19,096,734,695,003,460
  5. Step 5: Solve for x
    x = 19,096,734,695,003,460/145,152,001.80
  6. Step 6: Final answer
    x = 131,563,701.90

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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.