Home / 138,233,128.95-190,762,368.30-75,510,096.93

Finding the Fourth Proportional to 138,233,128.95, 190,762,368.30 and 75,510,096.93

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Solution

The fourth proportional to 138,233,128.95, 190,762,368.30 and 75,510,096.93 is: 104,204,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,233,128.95 : 190,762,368.30 = 75,510,096.93 : x
  2. Step 2: Convert to fraction form
    138,233,128.95/190,762,368.30 = 75,510,096.93/x
  3. Step 3: Cross multiply
    138,233,128.95x = 190,762,368.30 × 75,510,096.93
  4. Step 4: Simplify right side
    138,233,128.95x = 14,404,484,920,929,362
  5. Step 5: Solve for x
    x = 14,404,484,920,929,362/138,233,128.95
  6. Step 6: Final answer
    x = 104,204,289.02

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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.