Home / 1,417,472,001.20-2,126,208,001.80-870,439,732.40

Finding the Fourth Proportional to 1,417,472,001.20, 2,126,208,001.80 and 870,439,732.40

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Solution

The fourth proportional to 1,417,472,001.20, 2,126,208,001.80 and 870,439,732.40 is: 1,305,659,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,472,001.20 : 2,126,208,001.80 = 870,439,732.40 : x
  2. Step 2: Convert to fraction form
    1,417,472,001.20/2,126,208,001.80 = 870,439,732.40/x
  3. Step 3: Cross multiply
    1,417,472,001.20x = 2,126,208,001.80 × 870,439,732.40
  4. Step 4: Simplify right side
    1,417,472,001.20x = 1,850,735,924,113,530,624
  5. Step 5: Solve for x
    x = 1,850,735,924,113,530,624/1,417,472,001.20
  6. Step 6: Final answer
    x = 1,305,659,598.60

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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.