Home / 832,639,930.64-1,248,081,000.80-279,417,821.28

Finding the Fourth Proportional to 832,639,930.64, 1,248,081,000.80 and 279,417,821.28

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Solution

The fourth proportional to 832,639,930.64, 1,248,081,000.80 and 279,417,821.28 is: 418,831,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,639,930.64 : 1,248,081,000.80 = 279,417,821.28 : x
  2. Step 2: Convert to fraction form
    832,639,930.64/1,248,081,000.80 = 279,417,821.28/x
  3. Step 3: Cross multiply
    832,639,930.64x = 1,248,081,000.80 × 279,417,821.28
  4. Step 4: Simplify right side
    832,639,930.64x = 348,736,074,024,497,856
  5. Step 5: Solve for x
    x = 348,736,074,024,497,856/832,639,930.64
  6. Step 6: Final answer
    x = 418,831,791.74

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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.