Home / 138,077,551.58-190,551,060.93-75,357,672.34

Finding the Fourth Proportional to 138,077,551.58, 190,551,060.93 and 75,357,672.34

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Solution

The fourth proportional to 138,077,551.58, 190,551,060.93 and 75,357,672.34 is: 103,995,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,551.58 : 190,551,060.93 = 75,357,672.34 : x
  2. Step 2: Convert to fraction form
    138,077,551.58/190,551,060.93 = 75,357,672.34/x
  3. Step 3: Cross multiply
    138,077,551.58x = 190,551,060.93 × 75,357,672.34
  4. Step 4: Simplify right side
    138,077,551.58x = 14,359,484,412,272,772
  5. Step 5: Solve for x
    x = 14,359,484,412,272,772/138,077,551.58
  6. Step 6: Final answer
    x = 103,995,792.57

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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.