Home / 650,974,976.44-898,345,817.40-357,638,440.12

Finding the Fourth Proportional to 650,974,976.44, 898,345,817.40 and 357,638,440.12

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Solution

The fourth proportional to 650,974,976.44, 898,345,817.40 and 357,638,440.12 is: 493,541,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,974,976.44 : 898,345,817.40 = 357,638,440.12 : x
  2. Step 2: Convert to fraction form
    650,974,976.44/898,345,817.40 = 357,638,440.12/x
  3. Step 3: Cross multiply
    650,974,976.44x = 898,345,817.40 × 357,638,440.12
  4. Step 4: Simplify right side
    650,974,976.44x = 321,282,996,822,357,632
  5. Step 5: Solve for x
    x = 321,282,996,822,357,632/650,974,976.44
  6. Step 6: Final answer
    x = 493,541,239.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.