Home / 144,828,280.80-217,242,421.20-128,955,909.60

Finding the Fourth Proportional to 144,828,280.80, 217,242,421.20 and 128,955,909.60

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Solution

The fourth proportional to 144,828,280.80, 217,242,421.20 and 128,955,909.60 is: 193,433,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828,280.80 : 217,242,421.20 = 128,955,909.60 : x
  2. Step 2: Convert to fraction form
    144,828,280.80/217,242,421.20 = 128,955,909.60/x
  3. Step 3: Cross multiply
    144,828,280.80x = 217,242,421.20 × 128,955,909.60
  4. Step 4: Simplify right side
    144,828,280.80x = 28,014,694,029,552,320
  5. Step 5: Solve for x
    x = 28,014,694,029,552,320/144,828,280.80
  6. Step 6: Final answer
    x = 193,433,864.40

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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.