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Finding the Fourth Proportional to 666,794,764.71, 920,176,775.19 and 373,439,332.71

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Solution

The fourth proportional to 666,794,764.71, 920,176,775.19 and 373,439,332.71 is: 515,346,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,764.71 : 920,176,775.19 = 373,439,332.71 : x
  2. Step 2: Convert to fraction form
    666,794,764.71/920,176,775.19 = 373,439,332.71/x
  3. Step 3: Cross multiply
    666,794,764.71x = 920,176,775.19 × 373,439,332.71
  4. Step 4: Simplify right side
    666,794,764.71x = 343,630,200,902,193,280
  5. Step 5: Solve for x
    x = 343,630,200,902,193,280/666,794,764.71
  6. Step 6: Final answer
    x = 515,346,279.08

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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.