Home / 938,016,011.40-1,407,024,017.10-693,127,998.60

Finding the Fourth Proportional to 938,016,011.40, 1,407,024,017.10 and 693,127,998.60

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Solution

The fourth proportional to 938,016,011.40, 1,407,024,017.10 and 693,127,998.60 is: 1,039,691,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,016,011.40 : 1,407,024,017.10 = 693,127,998.60 : x
  2. Step 2: Convert to fraction form
    938,016,011.40/1,407,024,017.10 = 693,127,998.60/x
  3. Step 3: Cross multiply
    938,016,011.40x = 1,407,024,017.10 × 693,127,998.60
  4. Step 4: Simplify right side
    938,016,011.40x = 975,247,740,954,655,104
  5. Step 5: Solve for x
    x = 975,247,740,954,655,104/938,016,011.40
  6. Step 6: Final answer
    x = 1,039,691,997.90

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1.5x scale

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.