Home / 103,142,393.36-154,696,764.65-30,342,154.31

Finding the Fourth Proportional to 103,142,393.36, 154,696,764.65 and 30,342,154.31

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Solution

The fourth proportional to 103,142,393.36, 154,696,764.65 and 30,342,154.31 is: 45,508,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,142,393.36 : 154,696,764.65 = 30,342,154.31 : x
  2. Step 2: Convert to fraction form
    103,142,393.36/154,696,764.65 = 30,342,154.31/x
  3. Step 3: Cross multiply
    103,142,393.36x = 154,696,764.65 × 30,342,154.31
  4. Step 4: Simplify right side
    103,142,393.36x = 4,693,833,103,342,859
  5. Step 5: Solve for x
    x = 4,693,833,103,342,859/103,142,393.36
  6. Step 6: Final answer
    x = 45,508,281.81

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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.