Home / 30,942,376.50-42,691,167.63-18,547,947.58

Finding the Fourth Proportional to 30,942,376.50, 42,691,167.63 and 18,547,947.58

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Solution

The fourth proportional to 30,942,376.50, 42,691,167.63 and 18,547,947.58 is: 25,590,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942,376.50 : 42,691,167.63 = 18,547,947.58 : x
  2. Step 2: Convert to fraction form
    30,942,376.50/42,691,167.63 = 18,547,947.58/x
  3. Step 3: Cross multiply
    30,942,376.50x = 42,691,167.63 × 18,547,947.58
  4. Step 4: Simplify right side
    30,942,376.50x = 791,833,539,371,423
  5. Step 5: Solve for x
    x = 791,833,539,371,423/30,942,376.50
  6. Step 6: Final answer
    x = 25,590,585.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.