Home / 121,516,139.36-167,693,848.08-66,510,814.88

Finding the Fourth Proportional to 121,516,139.36, 167,693,848.08 and 66,510,814.88

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Solution

The fourth proportional to 121,516,139.36, 167,693,848.08 and 66,510,814.88 is: 91,785,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,516,139.36 : 167,693,848.08 = 66,510,814.88 : x
  2. Step 2: Convert to fraction form
    121,516,139.36/167,693,848.08 = 66,510,814.88/x
  3. Step 3: Cross multiply
    121,516,139.36x = 167,693,848.08 × 66,510,814.88
  4. Step 4: Simplify right side
    121,516,139.36x = 11,153,454,486,163,724
  5. Step 5: Solve for x
    x = 11,153,454,486,163,724/121,516,139.36
  6. Step 6: Final answer
    x = 91,785,787.01

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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.