Home / 745,716,326.40-1,119,078,374.40-418,191,206.40

Finding the Fourth Proportional to 745,716,326.40, 1,119,078,374.40 and 418,191,206.40

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Solution

The fourth proportional to 745,716,326.40, 1,119,078,374.40 and 418,191,206.40 is: 627,569,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,716,326.40 : 1,119,078,374.40 = 418,191,206.40 : x
  2. Step 2: Convert to fraction form
    745,716,326.40/1,119,078,374.40 = 418,191,206.40/x
  3. Step 3: Cross multiply
    745,716,326.40x = 1,119,078,374.40 × 418,191,206.40
  4. Step 4: Simplify right side
    745,716,326.40x = 467,988,735,446,486,912
  5. Step 5: Solve for x
    x = 467,988,735,446,486,912/745,716,326.40
  6. Step 6: Final answer
    x = 627,569,383.80

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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.