Home / 115,452,928.36-159,264,636.51-71,385,840.64

Finding the Fourth Proportional to 115,452,928.36, 159,264,636.51 and 71,385,840.64

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Solution

The fourth proportional to 115,452,928.36, 159,264,636.51 and 71,385,840.64 is: 98,475,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,452,928.36 : 159,264,636.51 = 71,385,840.64 : x
  2. Step 2: Convert to fraction form
    115,452,928.36/159,264,636.51 = 71,385,840.64/x
  3. Step 3: Cross multiply
    115,452,928.36x = 159,264,636.51 × 71,385,840.64
  4. Step 4: Simplify right side
    115,452,928.36x = 11,369,239,961,490,386
  5. Step 5: Solve for x
    x = 11,369,239,961,490,386/115,452,928.36
  6. Step 6: Final answer
    x = 98,475,111.22

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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.