Home / 209,954,008.80-314,931,013.20-191,142,309.60

Finding the Fourth Proportional to 209,954,008.80, 314,931,013.20 and 191,142,309.60

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Solution

The fourth proportional to 209,954,008.80, 314,931,013.20 and 191,142,309.60 is: 286,713,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,954,008.80 : 314,931,013.20 = 191,142,309.60 : x
  2. Step 2: Convert to fraction form
    209,954,008.80/314,931,013.20 = 191,142,309.60/x
  3. Step 3: Cross multiply
    209,954,008.80x = 314,931,013.20 × 191,142,309.60
  4. Step 4: Simplify right side
    209,954,008.80x = 60,196,641,227,716,080
  5. Step 5: Solve for x
    x = 60,196,641,227,716,080/209,954,008.80
  6. Step 6: Final answer
    x = 286,713,464.40

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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.