Home / 103,142,403.86-154,696,780.40-30,342,164.81

Finding the Fourth Proportional to 103,142,403.86, 154,696,780.40 and 30,342,164.81

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Solution

The fourth proportional to 103,142,403.86, 154,696,780.40 and 30,342,164.81 is: 45,508,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,142,403.86 : 154,696,780.40 = 30,342,164.81 : x
  2. Step 2: Convert to fraction form
    103,142,403.86/154,696,780.40 = 30,342,164.81/x
  3. Step 3: Cross multiply
    103,142,403.86x = 154,696,780.40 × 30,342,164.81
  4. Step 4: Simplify right side
    103,142,403.86x = 4,693,835,205,547,983
  5. Step 5: Solve for x
    x = 4,693,835,205,547,983/103,142,403.86
  6. Step 6: Final answer
    x = 45,508,297.56

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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.