Home / 30,281,278.80-45,421,918.20-27,942,938.40

Finding the Fourth Proportional to 30,281,278.80, 45,421,918.20 and 27,942,938.40

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Solution

The fourth proportional to 30,281,278.80, 45,421,918.20 and 27,942,938.40 is: 41,914,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281,278.80 : 45,421,918.20 = 27,942,938.40 : x
  2. Step 2: Convert to fraction form
    30,281,278.80/45,421,918.20 = 27,942,938.40/x
  3. Step 3: Cross multiply
    30,281,278.80x = 45,421,918.20 × 27,942,938.40
  4. Step 4: Simplify right side
    30,281,278.80x = 1,269,221,862,272,439
  5. Step 5: Solve for x
    x = 1,269,221,862,272,439/30,281,278.80
  6. Step 6: Final answer
    x = 41,914,407.60

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1.5x scale

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.