Home / 113,315,417.20-169,973,125.80-45,206,988.40

Finding the Fourth Proportional to 113,315,417.20, 169,973,125.80 and 45,206,988.40

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Solution

The fourth proportional to 113,315,417.20, 169,973,125.80 and 45,206,988.40 is: 67,810,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,417.20 : 169,973,125.80 = 45,206,988.40 : x
  2. Step 2: Convert to fraction form
    113,315,417.20/169,973,125.80 = 45,206,988.40/x
  3. Step 3: Cross multiply
    113,315,417.20x = 169,973,125.80 × 45,206,988.40
  4. Step 4: Simplify right side
    113,315,417.20x = 7,683,973,126,352,341
  5. Step 5: Solve for x
    x = 7,683,973,126,352,341/113,315,417.20
  6. Step 6: Final answer
    x = 67,810,482.60

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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.