Home / 872,844,356.10-1,309,266,534.15-778,141,569.90

Finding the Fourth Proportional to 872,844,356.10, 1,309,266,534.15 and 778,141,569.90

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Solution

The fourth proportional to 872,844,356.10, 1,309,266,534.15 and 778,141,569.90 is: 1,167,212,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,844,356.10 : 1,309,266,534.15 = 778,141,569.90 : x
  2. Step 2: Convert to fraction form
    872,844,356.10/1,309,266,534.15 = 778,141,569.90/x
  3. Step 3: Cross multiply
    872,844,356.10x = 1,309,266,534.15 × 778,141,569.90
  4. Step 4: Simplify right side
    872,844,356.10x = 1,018,794,716,301,012,992
  5. Step 5: Solve for x
    x = 1,018,794,716,301,012,992/872,844,356.10
  6. Step 6: Final answer
    x = 1,167,212,354.85

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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.