Home / 85,896,266.77-128,844,400.16-31,312,945.81

Finding the Fourth Proportional to 85,896,266.77, 128,844,400.16 and 31,312,945.81

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Solution

The fourth proportional to 85,896,266.77, 128,844,400.16 and 31,312,945.81 is: 46,969,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,896,266.77 : 128,844,400.16 = 31,312,945.81 : x
  2. Step 2: Convert to fraction form
    85,896,266.77/128,844,400.16 = 31,312,945.81/x
  3. Step 3: Cross multiply
    85,896,266.77x = 128,844,400.16 × 31,312,945.81
  4. Step 4: Simplify right side
    85,896,266.77x = 4,034,497,720,132,035
  5. Step 5: Solve for x
    x = 4,034,497,720,132,035/85,896,266.77
  6. Step 6: Final answer
    x = 46,969,418.72

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1.5x scale

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.