Home / 1,255,308,687.20-1,731,604,624.08-784,593,089.12

Finding the Fourth Proportional to 1,255,308,687.20, 1,731,604,624.08 and 784,593,089.12

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Solution

The fourth proportional to 1,255,308,687.20, 1,731,604,624.08 and 784,593,089.12 is: 1,082,287,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,308,687.20 : 1,731,604,624.08 = 784,593,089.12 : x
  2. Step 2: Convert to fraction form
    1,255,308,687.20/1,731,604,624.08 = 784,593,089.12/x
  3. Step 3: Cross multiply
    1,255,308,687.20x = 1,731,604,624.08 × 784,593,089.12
  4. Step 4: Simplify right side
    1,255,308,687.20x = 1,358,605,021,141,403,392
  5. Step 5: Solve for x
    x = 1,358,605,021,141,403,392/1,255,308,687.20
  6. Step 6: Final answer
    x = 1,082,287,595.87

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Double scale
Find fourth proportional to 1,255,308,688.20, 1,731,604,625.46 and 784,593,090.12
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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.