Home / 517,931,867.76-714,737,636.28-282,977,487.60

Finding the Fourth Proportional to 517,931,867.76, 714,737,636.28 and 282,977,487.60

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Solution

The fourth proportional to 517,931,867.76, 714,737,636.28 and 282,977,487.60 is: 390,504,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,931,867.76 : 714,737,636.28 = 282,977,487.60 : x
  2. Step 2: Convert to fraction form
    517,931,867.76/714,737,636.28 = 282,977,487.60/x
  3. Step 3: Cross multiply
    517,931,867.76x = 714,737,636.28 × 282,977,487.60
  4. Step 4: Simplify right side
    517,931,867.76x = 202,254,660,607,677,024
  5. Step 5: Solve for x
    x = 202,254,660,607,677,024/517,931,867.76
  6. Step 6: Final answer
    x = 390,504,375.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.