Home / 18,779,658.84-28,179,954.90-10,143,585

Finding the Fourth Proportional to 18,779,658.84, 28,179,954.90 and 10,143,585

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Solution

The fourth proportional to 18,779,658.84, 28,179,954.90 and 10,143,585 is: 15,221,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779,658.84 : 28,179,954.90 = 10,143,585 : x
  2. Step 2: Convert to fraction form
    18,779,658.84/28,179,954.90 = 10,143,585/x
  3. Step 3: Cross multiply
    18,779,658.84x = 28,179,954.90 × 10,143,585
  4. Step 4: Simplify right side
    18,779,658.84x = 285,845,767,824,316.50
  5. Step 5: Solve for x
    x = 285,845,767,824,316.50/18,779,658.84
  6. Step 6: Final answer
    x = 15,221,030.92

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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.