Home / 260,254,708.38-390,382,975.04-66,166,144.47

Finding the Fourth Proportional to 260,254,708.38, 390,382,975.04 and 66,166,144.47

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Solution

The fourth proportional to 260,254,708.38, 390,382,975.04 and 66,166,144.47 is: 99,249,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,254,708.38 : 390,382,975.04 = 66,166,144.47 : x
  2. Step 2: Convert to fraction form
    260,254,708.38/390,382,975.04 = 66,166,144.47/x
  3. Step 3: Cross multiply
    260,254,708.38x = 390,382,975.04 × 66,166,144.47
  4. Step 4: Simplify right side
    260,254,708.38x = 25,830,136,325,125,044
  5. Step 5: Solve for x
    x = 25,830,136,325,125,044/260,254,708.38
  6. Step 6: Final answer
    x = 99,249,448.69

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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.