Home / 103,620,938.60-155,431,407.90-31,808,023.40

Finding the Fourth Proportional to 103,620,938.60, 155,431,407.90 and 31,808,023.40

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Solution

The fourth proportional to 103,620,938.60, 155,431,407.90 and 31,808,023.40 is: 47,712,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620,938.60 : 155,431,407.90 = 31,808,023.40 : x
  2. Step 2: Convert to fraction form
    103,620,938.60/155,431,407.90 = 31,808,023.40/x
  3. Step 3: Cross multiply
    103,620,938.60x = 155,431,407.90 × 31,808,023.40
  4. Step 4: Simplify right side
    103,620,938.60x = 4,943,965,859,578,145
  5. Step 5: Solve for x
    x = 4,943,965,859,578,145/103,620,938.60
  6. Step 6: Final answer
    x = 47,712,035.10

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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.