Home / 145,617,672.80-218,426,509.20-131,005,013.60

Finding the Fourth Proportional to 145,617,672.80, 218,426,509.20 and 131,005,013.60

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Solution

The fourth proportional to 145,617,672.80, 218,426,509.20 and 131,005,013.60 is: 196,507,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617,672.80 : 218,426,509.20 = 131,005,013.60 : x
  2. Step 2: Convert to fraction form
    145,617,672.80/218,426,509.20 = 131,005,013.60/x
  3. Step 3: Cross multiply
    145,617,672.80x = 218,426,509.20 × 131,005,013.60
  4. Step 4: Simplify right side
    145,617,672.80x = 28,614,967,808,346,524
  5. Step 5: Solve for x
    x = 28,614,967,808,346,524/145,617,672.80
  6. Step 6: Final answer
    x = 196,507,520.40

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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.