Home / 13,909,605.95-20,849,683.11-4,678,790.87

Finding the Fourth Proportional to 13,909,605.95, 20,849,683.11 and 4,678,790.87

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Solution

The fourth proportional to 13,909,605.95, 20,849,683.11 and 4,678,790.87 is: 7,013,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909,605.95 : 20,849,683.11 = 4,678,790.87 : x
  2. Step 2: Convert to fraction form
    13,909,605.95/20,849,683.11 = 4,678,790.87/x
  3. Step 3: Cross multiply
    13,909,605.95x = 20,849,683.11 × 4,678,790.87
  4. Step 4: Simplify right side
    13,909,605.95x = 97,551,306,977,461.20
  5. Step 5: Solve for x
    x = 97,551,306,977,461.20/13,909,605.95
  6. Step 6: Final answer
    x = 7,013,232.96

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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.