Home / 74,152,643.10-111,228,964.65-71,129,334.30

Finding the Fourth Proportional to 74,152,643.10, 111,228,964.65 and 71,129,334.30

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Solution

The fourth proportional to 74,152,643.10, 111,228,964.65 and 71,129,334.30 is: 106,694,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152,643.10 : 111,228,964.65 = 71,129,334.30 : x
  2. Step 2: Convert to fraction form
    74,152,643.10/111,228,964.65 = 71,129,334.30/x
  3. Step 3: Cross multiply
    74,152,643.10x = 111,228,964.65 × 71,129,334.30
  4. Step 4: Simplify right side
    74,152,643.10x = 7,911,642,210,432,733
  5. Step 5: Solve for x
    x = 7,911,642,210,432,733/74,152,643.10
  6. Step 6: Final answer
    x = 106,694,001.45

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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.