Home / 900,348,910.65-1,242,454,762.08-498,480,533.86

Finding the Fourth Proportional to 900,348,910.65, 1,242,454,762.08 and 498,480,533.86

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Solution

The fourth proportional to 900,348,910.65, 1,242,454,762.08 and 498,480,533.86 is: 687,888,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,348,910.65 : 1,242,454,762.08 = 498,480,533.86 : x
  2. Step 2: Convert to fraction form
    900,348,910.65/1,242,454,762.08 = 498,480,533.86/x
  3. Step 3: Cross multiply
    900,348,910.65x = 1,242,454,762.08 × 498,480,533.86
  4. Step 4: Simplify right side
    900,348,910.65x = 619,339,513,104,700,288
  5. Step 5: Solve for x
    x = 619,339,513,104,700,288/900,348,910.65
  6. Step 6: Final answer
    x = 687,888,335.04

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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.