Home / 517,428,674.30-776,143,011.45-415,392,002.30

Finding the Fourth Proportional to 517,428,674.30, 776,143,011.45 and 415,392,002.30

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Solution

The fourth proportional to 517,428,674.30, 776,143,011.45 and 415,392,002.30 is: 623,088,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,428,674.30 : 776,143,011.45 = 415,392,002.30 : x
  2. Step 2: Convert to fraction form
    517,428,674.30/776,143,011.45 = 415,392,002.30/x
  3. Step 3: Cross multiply
    517,428,674.30x = 776,143,011.45 × 415,392,002.30
  4. Step 4: Simplify right side
    517,428,674.30x = 322,403,599,597,367,360
  5. Step 5: Solve for x
    x = 322,403,599,597,367,360/517,428,674.30
  6. Step 6: Final answer
    x = 623,088,003.45

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Double scale
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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.