Home / 20,343,406.80-28,074,421.08-11,176,280.40

Finding the Fourth Proportional to 20,343,406.80, 28,074,421.08 and 11,176,280.40

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Solution

The fourth proportional to 20,343,406.80, 28,074,421.08 and 11,176,280.40 is: 15,423,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343,406.80 : 28,074,421.08 = 11,176,280.40 : x
  2. Step 2: Convert to fraction form
    20,343,406.80/28,074,421.08 = 11,176,280.40/x
  3. Step 3: Cross multiply
    20,343,406.80x = 28,074,421.08 × 11,176,280.40
  4. Step 4: Simplify right side
    20,343,406.80x = 313,767,602,057,750.81
  5. Step 5: Solve for x
    x = 313,767,602,057,750.81/20,343,406.80
  6. Step 6: Final answer
    x = 15,423,552.46

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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.