Home / 272,967,257.60-409,450,886.40-169,655,127.20

Finding the Fourth Proportional to 272,967,257.60, 409,450,886.40 and 169,655,127.20

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Solution

The fourth proportional to 272,967,257.60, 409,450,886.40 and 169,655,127.20 is: 254,482,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,967,257.60 : 409,450,886.40 = 169,655,127.20 : x
  2. Step 2: Convert to fraction form
    272,967,257.60/409,450,886.40 = 169,655,127.20/x
  3. Step 3: Cross multiply
    272,967,257.60x = 409,450,886.40 × 169,655,127.20
  4. Step 4: Simplify right side
    272,967,257.60x = 69,465,442,214,344,744
  5. Step 5: Solve for x
    x = 69,465,442,214,344,744/272,967,257.60
  6. Step 6: Final answer
    x = 254,482,690.80

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1.5x scale

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.