Home / 260,310,265.53-390,467,686.82-66,221,886.57

Finding the Fourth Proportional to 260,310,265.53, 390,467,686.82 and 66,221,886.57

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Solution

The fourth proportional to 260,310,265.53, 390,467,686.82 and 66,221,886.57 is: 99,333,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,310,265.53 : 390,467,686.82 = 66,221,886.57 : x
  2. Step 2: Convert to fraction form
    260,310,265.53/390,467,686.82 = 66,221,886.57/x
  3. Step 3: Cross multiply
    260,310,265.53x = 390,467,686.82 × 66,221,886.57
  4. Step 4: Simplify right side
    260,310,265.53x = 25,857,506,865,513,216
  5. Step 5: Solve for x
    x = 25,857,506,865,513,216/260,310,265.53
  6. Step 6: Final answer
    x = 99,333,412.05

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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.