Home / 745,564,199.49-1,118,507,732.66-285,502,385.21

Finding the Fourth Proportional to 745,564,199.49, 1,118,507,732.66 and 285,502,385.21

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Solution

The fourth proportional to 745,564,199.49, 1,118,507,732.66 and 285,502,385.21 is: 428,315,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,564,199.49 : 1,118,507,732.66 = 285,502,385.21 : x
  2. Step 2: Convert to fraction form
    745,564,199.49/1,118,507,732.66 = 285,502,385.21/x
  3. Step 3: Cross multiply
    745,564,199.49x = 1,118,507,732.66 × 285,502,385.21
  4. Step 4: Simplify right side
    745,564,199.49x = 319,336,625,545,380,160
  5. Step 5: Solve for x
    x = 319,336,625,545,380,160/745,564,199.49
  6. Step 6: Final answer
    x = 428,315,396.26

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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.