Home / 129,343,021.80-194,014,532.70-121,690,271.40

Finding the Fourth Proportional to 129,343,021.80, 194,014,532.70 and 121,690,271.40

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Solution

The fourth proportional to 129,343,021.80, 194,014,532.70 and 121,690,271.40 is: 182,535,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,343,021.80 : 194,014,532.70 = 121,690,271.40 : x
  2. Step 2: Convert to fraction form
    129,343,021.80/194,014,532.70 = 121,690,271.40/x
  3. Step 3: Cross multiply
    129,343,021.80x = 194,014,532.70 × 121,690,271.40
  4. Step 4: Simplify right side
    129,343,021.80x = 23,609,681,139,807,176
  5. Step 5: Solve for x
    x = 23,609,681,139,807,176/129,343,021.80
  6. Step 6: Final answer
    x = 182,535,407.10

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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.