Home / 402,878,678.39-604,317,966.33-111,745,799.57

Finding the Fourth Proportional to 402,878,678.39, 604,317,966.33 and 111,745,799.57

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Solution

The fourth proportional to 402,878,678.39, 604,317,966.33 and 111,745,799.57 is: 167,618,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,878,678.39 : 604,317,966.33 = 111,745,799.57 : x
  2. Step 2: Convert to fraction form
    402,878,678.39/604,317,966.33 = 111,745,799.57/x
  3. Step 3: Cross multiply
    402,878,678.39x = 604,317,966.33 × 111,745,799.57
  4. Step 4: Simplify right side
    402,878,678.39x = 67,529,994,343,992,032
  5. Step 5: Solve for x
    x = 67,529,994,343,992,032/402,878,678.39
  6. Step 6: Final answer
    x = 167,618,685.14

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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.