Home / 28,424,511.87-42,655,689.44-15,473,931.65

Finding the Fourth Proportional to 28,424,511.87, 42,655,689.44 and 15,473,931.65

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Solution

The fourth proportional to 28,424,511.87, 42,655,689.44 and 15,473,931.65 is: 23,221,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424,511.87 : 42,655,689.44 = 15,473,931.65 : x
  2. Step 2: Convert to fraction form
    28,424,511.87/42,655,689.44 = 15,473,931.65/x
  3. Step 3: Cross multiply
    28,424,511.87x = 42,655,689.44 × 15,473,931.65
  4. Step 4: Simplify right side
    28,424,511.87x = 660,051,222,878,186.75
  5. Step 5: Solve for x
    x = 660,051,222,878,186.75/28,424,511.87
  6. Step 6: Final answer
    x = 23,221,198.17

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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.