Home / 257,916,897.60-386,875,346.40-243,136,276.80

Finding the Fourth Proportional to 257,916,897.60, 386,875,346.40 and 243,136,276.80

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Solution

The fourth proportional to 257,916,897.60, 386,875,346.40 and 243,136,276.80 is: 364,704,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,916,897.60 : 386,875,346.40 = 243,136,276.80 : x
  2. Step 2: Convert to fraction form
    257,916,897.60/386,875,346.40 = 243,136,276.80/x
  3. Step 3: Cross multiply
    257,916,897.60x = 386,875,346.40 × 243,136,276.80
  4. Step 4: Simplify right side
    257,916,897.60x = 94,063,431,309,406,288
  5. Step 5: Solve for x
    x = 94,063,431,309,406,288/257,916,897.60
  6. Step 6: Final answer
    x = 364,704,415.20

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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.