Home / 918,996,874.95-1,268,214,149.88-501,309,160.23

Finding the Fourth Proportional to 918,996,874.95, 1,268,214,149.88 and 501,309,160.23

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Solution

The fourth proportional to 918,996,874.95, 1,268,214,149.88 and 501,309,160.23 is: 691,805,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,996,874.95 : 1,268,214,149.88 = 501,309,160.23 : x
  2. Step 2: Convert to fraction form
    918,996,874.95/1,268,214,149.88 = 501,309,160.23/x
  3. Step 3: Cross multiply
    918,996,874.95x = 1,268,214,149.88 × 501,309,160.23
  4. Step 4: Simplify right side
    918,996,874.95x = 635,767,370,468,146,176
  5. Step 5: Solve for x
    x = 635,767,370,468,146,176/918,996,874.95
  6. Step 6: Final answer
    x = 691,805,802.39

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1.5x scale

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.