Home / 1,009,276,139.52-1,513,904,116.68-319,183,511.04

Finding the Fourth Proportional to 1,009,276,139.52, 1,513,904,116.68 and 319,183,511.04

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Solution

The fourth proportional to 1,009,276,139.52, 1,513,904,116.68 and 319,183,511.04 is: 478,772,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,276,139.52 : 1,513,904,116.68 = 319,183,511.04 : x
  2. Step 2: Convert to fraction form
    1,009,276,139.52/1,513,904,116.68 = 319,183,511.04/x
  3. Step 3: Cross multiply
    1,009,276,139.52x = 1,513,904,116.68 × 319,183,511.04
  4. Step 4: Simplify right side
    1,009,276,139.52x = 483,213,231,339,832,256
  5. Step 5: Solve for x
    x = 483,213,231,339,832,256/1,009,276,139.52
  6. Step 6: Final answer
    x = 478,772,074.78

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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.