Home / 153,009,007.80-229,513,511.70-91,787,004.60

Finding the Fourth Proportional to 153,009,007.80, 229,513,511.70 and 91,787,004.60

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Solution

The fourth proportional to 153,009,007.80, 229,513,511.70 and 91,787,004.60 is: 137,680,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,009,007.80 : 229,513,511.70 = 91,787,004.60 : x
  2. Step 2: Convert to fraction form
    153,009,007.80/229,513,511.70 = 91,787,004.60/x
  3. Step 3: Cross multiply
    153,009,007.80x = 229,513,511.70 × 91,787,004.60
  4. Step 4: Simplify right side
    153,009,007.80x = 21,066,357,754,170,052
  5. Step 5: Solve for x
    x = 21,066,357,754,170,052/153,009,007.80
  6. Step 6: Final answer
    x = 137,680,506.90

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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.