Home / 438,329,722.72-604,603,687.44-281,894,720.80

Finding the Fourth Proportional to 438,329,722.72, 604,603,687.44 and 281,894,720.80

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Solution

The fourth proportional to 438,329,722.72, 604,603,687.44 and 281,894,720.80 is: 388,827,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,329,722.72 : 604,603,687.44 = 281,894,720.80 : x
  2. Step 2: Convert to fraction form
    438,329,722.72/604,603,687.44 = 281,894,720.80/x
  3. Step 3: Cross multiply
    438,329,722.72x = 604,603,687.44 × 281,894,720.80
  4. Step 4: Simplify right side
    438,329,722.72x = 170,434,587,665,549,280
  5. Step 5: Solve for x
    x = 170,434,587,665,549,280/438,329,722.72
  6. Step 6: Final answer
    x = 388,827,357.20

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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.