Home / 7,175,490-9,902,253.64-3,912,278.16

Finding the Fourth Proportional to 7,175,490, 9,902,253.64 and 3,912,278.16

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Solution

The fourth proportional to 7,175,490, 9,902,253.64 and 3,912,278.16 is: 5,398,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175,490 : 9,902,253.64 = 3,912,278.16 : x
  2. Step 2: Convert to fraction form
    7,175,490/9,902,253.64 = 3,912,278.16/x
  3. Step 3: Cross multiply
    7,175,490x = 9,902,253.64 × 3,912,278.16
  4. Step 4: Simplify right side
    7,175,490x = 38,740,370,650,552.51
  5. Step 5: Solve for x
    x = 38,740,370,650,552.51/7,175,490
  6. Step 6: Final answer
    x = 5,398,986.08

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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.