Home / 137,181,792.16-189,313,686.52-77,643,087.32

Finding the Fourth Proportional to 137,181,792.16, 189,313,686.52 and 77,643,087.32

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Solution

The fourth proportional to 137,181,792.16, 189,313,686.52 and 77,643,087.32 is: 107,149,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,181,792.16 : 189,313,686.52 = 77,643,087.32 : x
  2. Step 2: Convert to fraction form
    137,181,792.16/189,313,686.52 = 77,643,087.32/x
  3. Step 3: Cross multiply
    137,181,792.16x = 189,313,686.52 × 77,643,087.32
  4. Step 4: Simplify right side
    137,181,792.16x = 14,698,899,093,343,466
  5. Step 5: Solve for x
    x = 14,698,899,093,343,466/137,181,792.16
  6. Step 6: Final answer
    x = 107,149,052.81

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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.