Home / 1,515,499,309.12-2,273,329,192.64-480,440,925.76

Finding the Fourth Proportional to 1,515,499,309.12, 2,273,329,192.64 and 480,440,925.76

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Solution

The fourth proportional to 1,515,499,309.12, 2,273,329,192.64 and 480,440,925.76 is: 720,686,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,499,309.12 : 2,273,329,192.64 = 480,440,925.76 : x
  2. Step 2: Convert to fraction form
    1,515,499,309.12/2,273,329,192.64 = 480,440,925.76/x
  3. Step 3: Cross multiply
    1,515,499,309.12x = 2,273,329,192.64 × 480,440,925.76
  4. Step 4: Simplify right side
    1,515,499,309.12x = 1,092,200,381,869,194,880
  5. Step 5: Solve for x
    x = 1,092,200,381,869,194,880/1,515,499,309.12
  6. Step 6: Final answer
    x = 720,686,822.68

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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.