Home / 105,141,644.80-157,712,467.20-74,530,643.20

Finding the Fourth Proportional to 105,141,644.80, 157,712,467.20 and 74,530,643.20

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Solution

The fourth proportional to 105,141,644.80, 157,712,467.20 and 74,530,643.20 is: 111,795,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,141,644.80 : 157,712,467.20 = 74,530,643.20 : x
  2. Step 2: Convert to fraction form
    105,141,644.80/157,712,467.20 = 74,530,643.20/x
  3. Step 3: Cross multiply
    105,141,644.80x = 157,712,467.20 × 74,530,643.20
  4. Step 4: Simplify right side
    105,141,644.80x = 11,754,411,621,074,902
  5. Step 5: Solve for x
    x = 11,754,411,621,074,902/105,141,644.80
  6. Step 6: Final answer
    x = 111,795,964.80

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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.