Home / 1,169,341,407.48-1,754,012,119.86-392,987,079.48

Finding the Fourth Proportional to 1,169,341,407.48, 1,754,012,119.86 and 392,987,079.48

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Solution

The fourth proportional to 1,169,341,407.48, 1,754,012,119.86 and 392,987,079.48 is: 589,480,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,341,407.48 : 1,754,012,119.86 = 392,987,079.48 : x
  2. Step 2: Convert to fraction form
    1,169,341,407.48/1,754,012,119.86 = 392,987,079.48/x
  3. Step 3: Cross multiply
    1,169,341,407.48x = 1,754,012,119.86 × 392,987,079.48
  4. Step 4: Simplify right side
    1,169,341,407.48x = 689,304,100,356,305,152
  5. Step 5: Solve for x
    x = 689,304,100,356,305,152/1,169,341,407.48
  6. Step 6: Final answer
    x = 589,480,622.12

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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.