Home / 109,141,881.20-163,712,821.80-65,492,860.40

Finding the Fourth Proportional to 109,141,881.20, 163,712,821.80 and 65,492,860.40

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Solution

The fourth proportional to 109,141,881.20, 163,712,821.80 and 65,492,860.40 is: 98,239,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,141,881.20 : 163,712,821.80 = 65,492,860.40 : x
  2. Step 2: Convert to fraction form
    109,141,881.20/163,712,821.80 = 65,492,860.40/x
  3. Step 3: Cross multiply
    109,141,881.20x = 163,712,821.80 × 65,492,860.40
  4. Step 4: Simplify right side
    109,141,881.20x = 10,722,020,983,837,478
  5. Step 5: Solve for x
    x = 10,722,020,983,837,478/109,141,881.20
  6. Step 6: Final answer
    x = 98,239,290.60

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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.