Home / 14,939,421.48-20,617,280.34-9,139,314.96

Finding the Fourth Proportional to 14,939,421.48, 20,617,280.34 and 9,139,314.96

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Solution

The fourth proportional to 14,939,421.48, 20,617,280.34 and 9,139,314.96 is: 12,612,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939,421.48 : 20,617,280.34 = 9,139,314.96 : x
  2. Step 2: Convert to fraction form
    14,939,421.48/20,617,280.34 = 9,139,314.96/x
  3. Step 3: Cross multiply
    14,939,421.48x = 20,617,280.34 × 9,139,314.96
  4. Step 4: Simplify right side
    14,939,421.48x = 188,427,818,645,875.91
  5. Step 5: Solve for x
    x = 188,427,818,645,875.91/14,939,421.48
  6. Step 6: Final answer
    x = 12,612,792.20

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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.