Home / 314,928,280.80-472,392,421.20-199,570,154.40

Finding the Fourth Proportional to 314,928,280.80, 472,392,421.20 and 199,570,154.40

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Solution

The fourth proportional to 314,928,280.80, 472,392,421.20 and 199,570,154.40 is: 299,355,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,280.80 : 472,392,421.20 = 199,570,154.40 : x
  2. Step 2: Convert to fraction form
    314,928,280.80/472,392,421.20 = 199,570,154.40/x
  3. Step 3: Cross multiply
    314,928,280.80x = 472,392,421.20 × 199,570,154.40
  4. Step 4: Simplify right side
    314,928,280.80x = 94,275,428,436,273,840
  5. Step 5: Solve for x
    x = 94,275,428,436,273,840/314,928,280.80
  6. Step 6: Final answer
    x = 299,355,231.60

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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.