Home / 1,617,050,312.40-2,425,575,701.40-390,218,768.40

Finding the Fourth Proportional to 1,617,050,312.40, 2,425,575,701.40 and 390,218,768.40

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Solution

The fourth proportional to 1,617,050,312.40, 2,425,575,701.40 and 390,218,768.40 is: 585,328,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,050,312.40 : 2,425,575,701.40 = 390,218,768.40 : x
  2. Step 2: Convert to fraction form
    1,617,050,312.40/2,425,575,701.40 = 390,218,768.40/x
  3. Step 3: Cross multiply
    1,617,050,312.40x = 2,425,575,701.40 × 390,218,768.40
  4. Step 4: Simplify right side
    1,617,050,312.40x = 946,505,162,861,274,112
  5. Step 5: Solve for x
    x = 946,505,162,861,274,112/1,617,050,312.40
  6. Step 6: Final answer
    x = 585,328,208.78

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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.