Home / 144,367,631.80-216,551,447.70-128,495,260.60

Finding the Fourth Proportional to 144,367,631.80, 216,551,447.70 and 128,495,260.60

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Solution

The fourth proportional to 144,367,631.80, 216,551,447.70 and 128,495,260.60 is: 192,742,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,367,631.80 : 216,551,447.70 = 128,495,260.60 : x
  2. Step 2: Convert to fraction form
    144,367,631.80/216,551,447.70 = 128,495,260.60/x
  3. Step 3: Cross multiply
    144,367,631.80x = 216,551,447.70 × 128,495,260.60
  4. Step 4: Simplify right side
    144,367,631.80x = 27,825,834,705,518,768
  5. Step 5: Solve for x
    x = 27,825,834,705,518,768/144,367,631.80
  6. Step 6: Final answer
    x = 192,742,890.90

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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.