Home / 347,689,643.80-521,534,465.70-291,569,474.20

Finding the Fourth Proportional to 347,689,643.80, 521,534,465.70 and 291,569,474.20

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Solution

The fourth proportional to 347,689,643.80, 521,534,465.70 and 291,569,474.20 is: 437,354,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,689,643.80 : 521,534,465.70 = 291,569,474.20 : x
  2. Step 2: Convert to fraction form
    347,689,643.80/521,534,465.70 = 291,569,474.20/x
  3. Step 3: Cross multiply
    347,689,643.80x = 521,534,465.70 × 291,569,474.20
  4. Step 4: Simplify right side
    347,689,643.80x = 152,063,529,941,326,912
  5. Step 5: Solve for x
    x = 152,063,529,941,326,912/347,689,643.80
  6. Step 6: Final answer
    x = 437,354,211.30

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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.