Home / 910,099,451.76-1,255,928,314.68-492,402,572.16

Finding the Fourth Proportional to 910,099,451.76, 1,255,928,314.68 and 492,402,572.16

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Solution

The fourth proportional to 910,099,451.76, 1,255,928,314.68 and 492,402,572.16 is: 679,510,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,099,451.76 : 1,255,928,314.68 = 492,402,572.16 : x
  2. Step 2: Convert to fraction form
    910,099,451.76/1,255,928,314.68 = 492,402,572.16/x
  3. Step 3: Cross multiply
    910,099,451.76x = 1,255,928,314.68 × 492,402,572.16
  4. Step 4: Simplify right side
    910,099,451.76x = 618,422,332,597,005,952
  5. Step 5: Solve for x
    x = 618,422,332,597,005,952/910,099,451.76
  6. Step 6: Final answer
    x = 679,510,718.75

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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.