Home / 745,564,195.73-1,118,507,727.03-285,502,381.45

Finding the Fourth Proportional to 745,564,195.73, 1,118,507,727.03 and 285,502,381.45

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Solution

The fourth proportional to 745,564,195.73, 1,118,507,727.03 and 285,502,381.45 is: 428,315,390.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,564,195.73 : 1,118,507,727.03 = 285,502,381.45 : x
  2. Step 2: Convert to fraction form
    745,564,195.73/1,118,507,727.03 = 285,502,381.45/x
  3. Step 3: Cross multiply
    745,564,195.73x = 1,118,507,727.03 × 285,502,381.45
  4. Step 4: Simplify right side
    745,564,195.73x = 319,336,619,734,495,232
  5. Step 5: Solve for x
    x = 319,336,619,734,495,232/745,564,195.73
  6. Step 6: Final answer
    x = 428,315,390.63

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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.