Home / 144,803,721.60-217,205,582.40-128,931,350.40

Finding the Fourth Proportional to 144,803,721.60, 217,205,582.40 and 128,931,350.40

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Solution

The fourth proportional to 144,803,721.60, 217,205,582.40 and 128,931,350.40 is: 193,397,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,803,721.60 : 217,205,582.40 = 128,931,350.40 : x
  2. Step 2: Convert to fraction form
    144,803,721.60/217,205,582.40 = 128,931,350.40/x
  3. Step 3: Cross multiply
    144,803,721.60x = 217,205,582.40 × 128,931,350.40
  4. Step 4: Simplify right side
    144,803,721.60x = 28,004,609,053,250,476
  5. Step 5: Solve for x
    x = 28,004,609,053,250,476/144,803,721.60
  6. Step 6: Final answer
    x = 193,397,025.60

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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.