Home / 28,298,809.40-42,423,330.90-16,943,775.80

Finding the Fourth Proportional to 28,298,809.40, 42,423,330.90 and 16,943,775.80

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Solution

The fourth proportional to 28,298,809.40, 42,423,330.90 and 16,943,775.80 is: 25,400,765.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298,809.40 : 42,423,330.90 = 16,943,775.80 : x
  2. Step 2: Convert to fraction form
    28,298,809.40/42,423,330.90 = 16,943,775.80/x
  3. Step 3: Cross multiply
    28,298,809.40x = 42,423,330.90 × 16,943,775.80
  4. Step 4: Simplify right side
    28,298,809.40x = 718,811,407,458,812.25
  5. Step 5: Solve for x
    x = 718,811,407,458,812.25/28,298,809.40
  6. Step 6: Final answer
    x = 25,400,765.00

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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.