Home / 144,815,625.60-217,223,438.40-86,616,931.20

Finding the Fourth Proportional to 144,815,625.60, 217,223,438.40 and 86,616,931.20

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Solution

The fourth proportional to 144,815,625.60, 217,223,438.40 and 86,616,931.20 is: 129,925,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,815,625.60 : 217,223,438.40 = 86,616,931.20 : x
  2. Step 2: Convert to fraction form
    144,815,625.60/217,223,438.40 = 86,616,931.20/x
  3. Step 3: Cross multiply
    144,815,625.60x = 217,223,438.40 × 86,616,931.20
  4. Step 4: Simplify right side
    144,815,625.60x = 18,815,227,618,920,240
  5. Step 5: Solve for x
    x = 18,815,227,618,920,240/144,815,625.60
  6. Step 6: Final answer
    x = 129,925,396.80

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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.