Home / 288,457,330.60-432,685,995.90-83,992,076.20

Finding the Fourth Proportional to 288,457,330.60, 432,685,995.90 and 83,992,076.20

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Solution

The fourth proportional to 288,457,330.60, 432,685,995.90 and 83,992,076.20 is: 125,988,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,457,330.60 : 432,685,995.90 = 83,992,076.20 : x
  2. Step 2: Convert to fraction form
    288,457,330.60/432,685,995.90 = 83,992,076.20/x
  3. Step 3: Cross multiply
    288,457,330.60x = 432,685,995.90 × 83,992,076.20
  4. Step 4: Simplify right side
    288,457,330.60x = 36,342,195,138,305,688
  5. Step 5: Solve for x
    x = 36,342,195,138,305,688/288,457,330.60
  6. Step 6: Final answer
    x = 125,988,114.30

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Similar ratio
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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.