Home / 129,031,790.80-193,547,686.20-119,178,043.60

Finding the Fourth Proportional to 129,031,790.80, 193,547,686.20 and 119,178,043.60

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Solution

The fourth proportional to 129,031,790.80, 193,547,686.20 and 119,178,043.60 is: 178,767,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,031,790.80 : 193,547,686.20 = 119,178,043.60 : x
  2. Step 2: Convert to fraction form
    129,031,790.80/193,547,686.20 = 119,178,043.60/x
  3. Step 3: Cross multiply
    129,031,790.80x = 193,547,686.20 × 119,178,043.60
  4. Step 4: Simplify right side
    129,031,790.80x = 23,066,634,584,622,716
  5. Step 5: Solve for x
    x = 23,066,634,584,622,716/129,031,790.80
  6. Step 6: Final answer
    x = 178,767,065.40

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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.