Home / 290,903,140.47-401,454,812.38-158,752,649.50

Finding the Fourth Proportional to 290,903,140.47, 401,454,812.38 and 158,752,649.50

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Solution

The fourth proportional to 290,903,140.47, 401,454,812.38 and 158,752,649.50 is: 219,083,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,903,140.47 : 401,454,812.38 = 158,752,649.50 : x
  2. Step 2: Convert to fraction form
    290,903,140.47/401,454,812.38 = 158,752,649.50/x
  3. Step 3: Cross multiply
    290,903,140.47x = 401,454,812.38 × 158,752,649.50
  4. Step 4: Simplify right side
    290,903,140.47x = 63,732,015,120,560,840
  5. Step 5: Solve for x
    x = 63,732,015,120,560,840/290,903,140.47
  6. Step 6: Final answer
    x = 219,083,283.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.