Home / 279,386,419.70-385,561,994.74-160,330,792.55

Finding the Fourth Proportional to 279,386,419.70, 385,561,994.74 and 160,330,792.55

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Solution

The fourth proportional to 279,386,419.70, 385,561,994.74 and 160,330,792.55 is: 221,261,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,386,419.70 : 385,561,994.74 = 160,330,792.55 : x
  2. Step 2: Convert to fraction form
    279,386,419.70/385,561,994.74 = 160,330,792.55/x
  3. Step 3: Cross multiply
    279,386,419.70x = 385,561,994.74 × 160,330,792.55
  4. Step 4: Simplify right side
    279,386,419.70x = 61,817,460,191,895,320
  5. Step 5: Solve for x
    x = 61,817,460,191,895,320/279,386,419.70
  6. Step 6: Final answer
    x = 221,261,506.76

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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.