Home / 120,077,547.07-165,707,156.70-65,073,403.57

Finding the Fourth Proportional to 120,077,547.07, 165,707,156.70 and 65,073,403.57

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Solution

The fourth proportional to 120,077,547.07, 165,707,156.70 and 65,073,403.57 is: 89,801,373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,547.07 : 165,707,156.70 = 65,073,403.57 : x
  2. Step 2: Convert to fraction form
    120,077,547.07/165,707,156.70 = 65,073,403.57/x
  3. Step 3: Cross multiply
    120,077,547.07x = 165,707,156.70 × 65,073,403.57
  4. Step 4: Simplify right side
    120,077,547.07x = 10,783,128,682,376,328
  5. Step 5: Solve for x
    x = 10,783,128,682,376,328/120,077,547.07
  6. Step 6: Final answer
    x = 89,801,373.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.