Home / 1,121,238,124.20-1,681,857,186.30-538,831,932.30

Finding the Fourth Proportional to 1,121,238,124.20, 1,681,857,186.30 and 538,831,932.30

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Solution

The fourth proportional to 1,121,238,124.20, 1,681,857,186.30 and 538,831,932.30 is: 808,247,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,238,124.20 : 1,681,857,186.30 = 538,831,932.30 : x
  2. Step 2: Convert to fraction form
    1,121,238,124.20/1,681,857,186.30 = 538,831,932.30/x
  3. Step 3: Cross multiply
    1,121,238,124.20x = 1,681,857,186.30 × 538,831,932.30
  4. Step 4: Simplify right side
    1,121,238,124.20x = 906,238,357,546,669,952
  5. Step 5: Solve for x
    x = 906,238,357,546,669,952/1,121,238,124.20
  6. Step 6: Final answer
    x = 808,247,898.45

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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.