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Finding the Fourth Proportional to 358,773,602.40, 538,160,403.60 and 228,995,710.20

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Solution

The fourth proportional to 358,773,602.40, 538,160,403.60 and 228,995,710.20 is: 343,493,565.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,773,602.40 : 538,160,403.60 = 228,995,710.20 : x
  2. Step 2: Convert to fraction form
    358,773,602.40/538,160,403.60 = 228,995,710.20/x
  3. Step 3: Cross multiply
    358,773,602.40x = 538,160,403.60 × 228,995,710.20
  4. Step 4: Simplify right side
    358,773,602.40x = 123,236,423,823,900,640
  5. Step 5: Solve for x
    x = 123,236,423,823,900,640/358,773,602.40
  6. Step 6: Final answer
    x = 343,493,565.30

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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.