Home / 579,312,593.60-868,968,890.40-142,609,809.20

Finding the Fourth Proportional to 579,312,593.60, 868,968,890.40 and 142,609,809.20

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Solution

The fourth proportional to 579,312,593.60, 868,968,890.40 and 142,609,809.20 is: 213,914,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,312,593.60 : 868,968,890.40 = 142,609,809.20 : x
  2. Step 2: Convert to fraction form
    579,312,593.60/868,968,890.40 = 142,609,809.20/x
  3. Step 3: Cross multiply
    579,312,593.60x = 868,968,890.40 × 142,609,809.20
  4. Step 4: Simplify right side
    579,312,593.60x = 123,923,487,660,679,696
  5. Step 5: Solve for x
    x = 123,923,487,660,679,696/579,312,593.60
  6. Step 6: Final answer
    x = 213,914,713.80

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1.5x scale

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.