Home / 144,648,136.80-216,972,205.20-87,205,269.60

Finding the Fourth Proportional to 144,648,136.80, 216,972,205.20 and 87,205,269.60

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Solution

The fourth proportional to 144,648,136.80, 216,972,205.20 and 87,205,269.60 is: 130,807,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,648,136.80 : 216,972,205.20 = 87,205,269.60 : x
  2. Step 2: Convert to fraction form
    144,648,136.80/216,972,205.20 = 87,205,269.60/x
  3. Step 3: Cross multiply
    144,648,136.80x = 216,972,205.20 × 87,205,269.60
  4. Step 4: Simplify right side
    144,648,136.80x = 18,921,119,650,172,520
  5. Step 5: Solve for x
    x = 18,921,119,650,172,520/144,648,136.80
  6. Step 6: Final answer
    x = 130,807,904.40

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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.