Home / 80,706,121.80-121,059,182.70-74,470,547.40

Finding the Fourth Proportional to 80,706,121.80, 121,059,182.70 and 74,470,547.40

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Solution

The fourth proportional to 80,706,121.80, 121,059,182.70 and 74,470,547.40 is: 111,705,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,706,121.80 : 121,059,182.70 = 74,470,547.40 : x
  2. Step 2: Convert to fraction form
    80,706,121.80/121,059,182.70 = 74,470,547.40/x
  3. Step 3: Cross multiply
    80,706,121.80x = 121,059,182.70 × 74,470,547.40
  4. Step 4: Simplify right side
    80,706,121.80x = 9,015,343,603,465,610
  5. Step 5: Solve for x
    x = 9,015,343,603,465,610/80,706,121.80
  6. Step 6: Final answer
    x = 111,705,821.10

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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.