Home / 98,355,642.15-135,730,151.78-54,305,386.23

Finding the Fourth Proportional to 98,355,642.15, 135,730,151.78 and 54,305,386.23

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Solution

The fourth proportional to 98,355,642.15, 135,730,151.78 and 54,305,386.23 is: 74,941,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,355,642.15 : 135,730,151.78 = 54,305,386.23 : x
  2. Step 2: Convert to fraction form
    98,355,642.15/135,730,151.78 = 54,305,386.23/x
  3. Step 3: Cross multiply
    98,355,642.15x = 135,730,151.78 × 54,305,386.23
  4. Step 4: Simplify right side
    98,355,642.15x = 7,370,878,315,197,895
  5. Step 5: Solve for x
    x = 7,370,878,315,197,895/98,355,642.15
  6. Step 6: Final answer
    x = 74,941,082.73

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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.