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Finding the Fourth Proportional to 386,455,801.60, 579,683,702.40 and 386,455,801.60

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Solution

The fourth proportional to 386,455,801.60, 579,683,702.40 and 386,455,801.60 is: 579,683,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,455,801.60 : 579,683,702.40 = 386,455,801.60 : x
  2. Step 2: Convert to fraction form
    386,455,801.60/579,683,702.40 = 386,455,801.60/x
  3. Step 3: Cross multiply
    386,455,801.60x = 579,683,702.40 × 386,455,801.60
  4. Step 4: Simplify right side
    386,455,801.60x = 224,022,129,885,447,840
  5. Step 5: Solve for x
    x = 224,022,129,885,447,840/386,455,801.60
  6. Step 6: Final answer
    x = 579,683,702.40

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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.