Home / 130,292,086.16-179,872,884.88-100,457,573.20

Finding the Fourth Proportional to 130,292,086.16, 179,872,884.88 and 100,457,573.20

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Solution

The fourth proportional to 130,292,086.16, 179,872,884.88 and 100,457,573.20 is: 138,685,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,292,086.16 : 179,872,884.88 = 100,457,573.20 : x
  2. Step 2: Convert to fraction form
    130,292,086.16/179,872,884.88 = 100,457,573.20/x
  3. Step 3: Cross multiply
    130,292,086.16x = 179,872,884.88 × 100,457,573.20
  4. Step 4: Simplify right side
    130,292,086.16x = 18,069,593,499,527,772
  5. Step 5: Solve for x
    x = 18,069,593,499,527,772/130,292,086.16
  6. Step 6: Final answer
    x = 138,685,272.70

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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.