Home / 138,749,991.90-208,055,734.65-45,364,798.50

Finding the Fourth Proportional to 138,749,991.90, 208,055,734.65 and 45,364,798.50

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Solution

The fourth proportional to 138,749,991.90, 208,055,734.65 and 45,364,798.50 is: 68,024,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,749,991.90 : 208,055,734.65 = 45,364,798.50 : x
  2. Step 2: Convert to fraction form
    138,749,991.90/208,055,734.65 = 45,364,798.50/x
  3. Step 3: Cross multiply
    138,749,991.90x = 208,055,734.65 × 45,364,798.50
  4. Step 4: Simplify right side
    138,749,991.90x = 9,438,406,479,166,718
  5. Step 5: Solve for x
    x = 9,438,406,479,166,718/138,749,991.90
  6. Step 6: Final answer
    x = 68,024,555.17

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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.