Home / 124,238,348.40-186,144,946.20-78,746,998.80

Finding the Fourth Proportional to 124,238,348.40, 186,144,946.20 and 78,746,998.80

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Solution

The fourth proportional to 124,238,348.40, 186,144,946.20 and 78,746,998.80 is: 117,985,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,238,348.40 : 186,144,946.20 = 78,746,998.80 : x
  2. Step 2: Convert to fraction form
    124,238,348.40/186,144,946.20 = 78,746,998.80/x
  3. Step 3: Cross multiply
    124,238,348.40x = 186,144,946.20 × 78,746,998.80
  4. Step 4: Simplify right side
    124,238,348.40x = 14,658,355,855,037,464
  5. Step 5: Solve for x
    x = 14,658,355,855,037,464/124,238,348.40
  6. Step 6: Final answer
    x = 117,985,759.18

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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.