Home / 949,035,084.80-1,421,761,036.80-487,401,958.40

Finding the Fourth Proportional to 949,035,084.80, 1,421,761,036.80 and 487,401,958.40

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Solution

The fourth proportional to 949,035,084.80, 1,421,761,036.80 and 487,401,958.40 is: 730,182,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,035,084.80 : 1,421,761,036.80 = 487,401,958.40 : x
  2. Step 2: Convert to fraction form
    949,035,084.80/1,421,761,036.80 = 487,401,958.40/x
  3. Step 3: Cross multiply
    949,035,084.80x = 1,421,761,036.80 × 487,401,958.40
  4. Step 4: Simplify right side
    949,035,084.80x = 692,969,113,713,134,464
  5. Step 5: Solve for x
    x = 692,969,113,713,134,464/949,035,084.80
  6. Step 6: Final answer
    x = 730,182,819.17

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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.