Home / 659,527,681.65-989,323,337.43-216,860,560.74

Finding the Fourth Proportional to 659,527,681.65, 989,323,337.43 and 216,860,560.74

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Solution

The fourth proportional to 659,527,681.65, 989,323,337.43 and 216,860,560.74 is: 325,301,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,527,681.65 : 989,323,337.43 = 216,860,560.74 : x
  2. Step 2: Convert to fraction form
    659,527,681.65/989,323,337.43 = 216,860,560.74/x
  3. Step 3: Cross multiply
    659,527,681.65x = 989,323,337.43 × 216,860,560.74
  4. Step 4: Simplify right side
    659,527,681.65x = 214,545,213,708,238,016
  5. Step 5: Solve for x
    x = 214,545,213,708,238,016/659,527,681.65
  6. Step 6: Final answer
    x = 325,301,302.25

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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.