Home / 642,168,925,050.61-886,209,912,167.23-349,210,981,858.93

Finding the Fourth Proportional to 642,168,925,050.61, 886,209,912,167.23 and 349,210,981,858.93

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Solution

The fourth proportional to 642,168,925,050.61, 886,209,912,167.23 and 349,210,981,858.93 is: 481,920,288,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,168,925,050.61 : 886,209,912,167.23 = 349,210,981,858.93 : x
  2. Step 2: Convert to fraction form
    642,168,925,050.61/886,209,912,167.23 = 349,210,981,858.93/x
  3. Step 3: Cross multiply
    642,168,925,050.61x = 886,209,912,167.23 × 349,210,981,858.93
  4. Step 4: Simplify right side
    642,168,925,050.61x = 309,474,233,561,034,482,778,112
  5. Step 5: Solve for x
    x = 309,474,233,561,034,482,778,112/642,168,925,050.61
  6. Step 6: Final answer
    x = 481,920,288,398.64

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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.