Home / 781,083,531.60-1,171,625,355.72-608,689,378.32

Finding the Fourth Proportional to 781,083,531.60, 1,171,625,355.72 and 608,689,378.32

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Solution

The fourth proportional to 781,083,531.60, 1,171,625,355.72 and 608,689,378.32 is: 913,034,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,083,531.60 : 1,171,625,355.72 = 608,689,378.32 : x
  2. Step 2: Convert to fraction form
    781,083,531.60/1,171,625,355.72 = 608,689,378.32/x
  3. Step 3: Cross multiply
    781,083,531.60x = 1,171,625,355.72 × 608,689,378.32
  4. Step 4: Simplify right side
    781,083,531.60x = 713,155,909,397,155,712
  5. Step 5: Solve for x
    x = 713,155,909,397,155,712/781,083,531.60
  6. Step 6: Final answer
    x = 913,034,112.93

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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.