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Finding the Fourth Proportional to 314,928,280.45, 472,392,420.90 and 314,928,280.45

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Solution

The fourth proportional to 314,928,280.45, 472,392,420.90 and 314,928,280.45 is: 472,392,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,280.45 : 472,392,420.90 = 314,928,280.45 : x
  2. Step 2: Convert to fraction form
    314,928,280.45/472,392,420.90 = 314,928,280.45/x
  3. Step 3: Cross multiply
    314,928,280.45x = 472,392,420.90 × 314,928,280.45
  4. Step 4: Simplify right side
    314,928,280.45x = 148,769,732,811,649,632
  5. Step 5: Solve for x
    x = 148,769,732,811,649,632/314,928,280.45
  6. Step 6: Final answer
    x = 472,392,420.90

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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.