Home / 79,863,017.85-119,807,763.70-28,034,172.81

Finding the Fourth Proportional to 79,863,017.85, 119,807,763.70 and 28,034,172.81

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Solution

The fourth proportional to 79,863,017.85, 119,807,763.70 and 28,034,172.81 is: 42,055,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863,017.85 : 119,807,763.70 = 28,034,172.81 : x
  2. Step 2: Convert to fraction form
    79,863,017.85/119,807,763.70 = 28,034,172.81/x
  3. Step 3: Cross multiply
    79,863,017.85x = 119,807,763.70 × 28,034,172.81
  4. Step 4: Simplify right side
    79,863,017.85x = 3,358,711,551,545,445
  5. Step 5: Solve for x
    x = 3,358,711,551,545,445/79,863,017.85
  6. Step 6: Final answer
    x = 42,055,905.75

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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.