Home / 668,761,004.40-922,920,769.08-371,404,587.12

Finding the Fourth Proportional to 668,761,004.40, 922,920,769.08 and 371,404,587.12

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Solution

The fourth proportional to 668,761,004.40, 922,920,769.08 and 371,404,587.12 is: 512,555,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,761,004.40 : 922,920,769.08 = 371,404,587.12 : x
  2. Step 2: Convert to fraction form
    668,761,004.40/922,920,769.08 = 371,404,587.12/x
  3. Step 3: Cross multiply
    668,761,004.40x = 922,920,769.08 × 371,404,587.12
  4. Step 4: Simplify right side
    668,761,004.40x = 342,777,007,184,630,272
  5. Step 5: Solve for x
    x = 342,777,007,184,630,272/668,761,004.40
  6. Step 6: Final answer
    x = 512,555,314.87

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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.