Home / 157,127,605.02-216,842,854.95-87,513,016.86

Finding the Fourth Proportional to 157,127,605.02, 216,842,854.95 and 87,513,016.86

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Solution

The fourth proportional to 157,127,605.02, 216,842,854.95 and 87,513,016.86 is: 120,771,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,127,605.02 : 216,842,854.95 = 87,513,016.86 : x
  2. Step 2: Convert to fraction form
    157,127,605.02/216,842,854.95 = 87,513,016.86/x
  3. Step 3: Cross multiply
    157,127,605.02x = 216,842,854.95 × 87,513,016.86
  4. Step 4: Simplify right side
    157,127,605.02x = 18,976,572,421,209,884
  5. Step 5: Solve for x
    x = 18,976,572,421,209,884/157,127,605.02
  6. Step 6: Final answer
    x = 120,771,728.30

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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.