Home / 724,682,799.72-1,088,660,549.93-429,771,349.23

Finding the Fourth Proportional to 724,682,799.72, 1,088,660,549.93 and 429,771,349.23

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Solution

The fourth proportional to 724,682,799.72, 1,088,660,549.93 and 429,771,349.23 is: 645,627,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,682,799.72 : 1,088,660,549.93 = 429,771,349.23 : x
  2. Step 2: Convert to fraction form
    724,682,799.72/1,088,660,549.93 = 429,771,349.23/x
  3. Step 3: Cross multiply
    724,682,799.72x = 1,088,660,549.93 × 429,771,349.23
  4. Step 4: Simplify right side
    724,682,799.72x = 467,875,113,396,787,712
  5. Step 5: Solve for x
    x = 467,875,113,396,787,712/724,682,799.72
  6. Step 6: Final answer
    x = 645,627,457.39

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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.