Home / 153,009,022.80-229,513,534.20-91,787,019.60

Finding the Fourth Proportional to 153,009,022.80, 229,513,534.20 and 91,787,019.60

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Solution

The fourth proportional to 153,009,022.80, 229,513,534.20 and 91,787,019.60 is: 137,680,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,009,022.80 : 229,513,534.20 = 91,787,019.60 : x
  2. Step 2: Convert to fraction form
    153,009,022.80/229,513,534.20 = 91,787,019.60/x
  3. Step 3: Cross multiply
    153,009,022.80x = 229,513,534.20 × 91,787,019.60
  4. Step 4: Simplify right side
    153,009,022.80x = 21,066,363,262,080,668
  5. Step 5: Solve for x
    x = 21,066,363,262,080,668/153,009,022.80
  6. Step 6: Final answer
    x = 137,680,529.40

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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.