Home / 287,713,002.60-431,569,503.90-105,922,564.20

Finding the Fourth Proportional to 287,713,002.60, 431,569,503.90 and 105,922,564.20

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Solution

The fourth proportional to 287,713,002.60, 431,569,503.90 and 105,922,564.20 is: 158,883,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,002.60 : 431,569,503.90 = 105,922,564.20 : x
  2. Step 2: Convert to fraction form
    287,713,002.60/431,569,503.90 = 105,922,564.20/x
  3. Step 3: Cross multiply
    287,713,002.60x = 431,569,503.90 × 105,922,564.20
  4. Step 4: Simplify right side
    287,713,002.60x = 45,712,948,483,609,896
  5. Step 5: Solve for x
    x = 45,712,948,483,609,896/287,713,002.60
  6. Step 6: Final answer
    x = 158,883,846.30

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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.