Home / 642,168,925,046.60-886,209,912,161.70-349,210,981,854.93

Finding the Fourth Proportional to 642,168,925,046.60, 886,209,912,161.70 and 349,210,981,854.93

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Solution

The fourth proportional to 642,168,925,046.60, 886,209,912,161.70 and 349,210,981,854.93 is: 481,920,288,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,168,925,046.60 : 886,209,912,161.70 = 349,210,981,854.93 : x
  2. Step 2: Convert to fraction form
    642,168,925,046.60/886,209,912,161.70 = 349,210,981,854.93/x
  3. Step 3: Cross multiply
    642,168,925,046.60x = 886,209,912,161.70 × 349,210,981,854.93
  4. Step 4: Simplify right side
    642,168,925,046.60x = 309,474,233,555,558,533,693,440
  5. Step 5: Solve for x
    x = 309,474,233,555,558,533,693,440/642,168,925,046.60
  6. Step 6: Final answer
    x = 481,920,288,393.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.