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Finding the Fourth Proportional to 666,794,652, 920,176,619.76 and 373,439,220

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Solution

The fourth proportional to 666,794,652, 920,176,619.76 and 373,439,220 is: 515,346,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,652 : 920,176,619.76 = 373,439,220 : x
  2. Step 2: Convert to fraction form
    666,794,652/920,176,619.76 = 373,439,220/x
  3. Step 3: Cross multiply
    666,794,652x = 920,176,619.76 × 373,439,220
  4. Step 4: Simplify right side
    666,794,652x = 343,630,039,145,411,008
  5. Step 5: Solve for x
    x = 343,630,039,145,411,008/666,794,652
  6. Step 6: Final answer
    x = 515,346,123.60

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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.