Home / 659,527,685.15-989,323,342.68-216,860,564.24

Finding the Fourth Proportional to 659,527,685.15, 989,323,342.68 and 216,860,564.24

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Solution

The fourth proportional to 659,527,685.15, 989,323,342.68 and 216,860,564.24 is: 325,301,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,527,685.15 : 989,323,342.68 = 216,860,564.24 : x
  2. Step 2: Convert to fraction form
    659,527,685.15/989,323,342.68 = 216,860,564.24/x
  3. Step 3: Cross multiply
    659,527,685.15x = 989,323,342.68 × 216,860,564.24
  4. Step 4: Simplify right side
    659,527,685.15x = 214,545,218,309,387,680
  5. Step 5: Solve for x
    x = 214,545,218,309,387,680/659,527,685.15
  6. Step 6: Final answer
    x = 325,301,307.50

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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.