Home / 100,737,547.40-151,106,321.10-78,818,558.60

Finding the Fourth Proportional to 100,737,547.40, 151,106,321.10 and 78,818,558.60

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Solution

The fourth proportional to 100,737,547.40, 151,106,321.10 and 78,818,558.60 is: 118,227,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,737,547.40 : 151,106,321.10 = 78,818,558.60 : x
  2. Step 2: Convert to fraction form
    100,737,547.40/151,106,321.10 = 78,818,558.60/x
  3. Step 3: Cross multiply
    100,737,547.40x = 151,106,321.10 × 78,818,558.60
  4. Step 4: Simplify right side
    100,737,547.40x = 11,909,982,424,450,766
  5. Step 5: Solve for x
    x = 11,909,982,424,450,766/100,737,547.40
  6. Step 6: Final answer
    x = 118,227,837.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.