Home / 129,249,195.20-193,968,271.20-90,985,443.20

Finding the Fourth Proportional to 129,249,195.20, 193,968,271.20 and 90,985,443.20

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Solution

The fourth proportional to 129,249,195.20, 193,968,271.20 and 90,985,443.20 is: 136,544,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,249,195.20 : 193,968,271.20 = 90,985,443.20 : x
  2. Step 2: Convert to fraction form
    129,249,195.20/193,968,271.20 = 90,985,443.20/x
  3. Step 3: Cross multiply
    129,249,195.20x = 193,968,271.20 × 90,985,443.20
  4. Step 4: Simplify right side
    129,249,195.20x = 17,648,289,121,869,796
  5. Step 5: Solve for x
    x = 17,648,289,121,869,796/129,249,195.20
  6. Step 6: Final answer
    x = 136,544,673.21

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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.