Home / 103,620,958.60-155,431,437.90-31,808,043.40

Finding the Fourth Proportional to 103,620,958.60, 155,431,437.90 and 31,808,043.40

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Solution

The fourth proportional to 103,620,958.60, 155,431,437.90 and 31,808,043.40 is: 47,712,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620,958.60 : 155,431,437.90 = 31,808,043.40 : x
  2. Step 2: Convert to fraction form
    103,620,958.60/155,431,437.90 = 31,808,043.40/x
  3. Step 3: Cross multiply
    103,620,958.60x = 155,431,437.90 × 31,808,043.40
  4. Step 4: Simplify right side
    103,620,958.60x = 4,943,969,922,447,605
  5. Step 5: Solve for x
    x = 4,943,969,922,447,605/103,620,958.60
  6. Step 6: Final answer
    x = 47,712,065.10

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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.