Home / 673,730,608.24-928,423,834.88-515,140,420.79

Finding the Fourth Proportional to 673,730,608.24, 928,423,834.88 and 515,140,420.79

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Solution

The fourth proportional to 673,730,608.24, 928,423,834.88 and 515,140,420.79 is: 709,881,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,730,608.24 : 928,423,834.88 = 515,140,420.79 : x
  2. Step 2: Convert to fraction form
    673,730,608.24/928,423,834.88 = 515,140,420.79/x
  3. Step 3: Cross multiply
    673,730,608.24x = 928,423,834.88 × 515,140,420.79
  4. Step 4: Simplify right side
    673,730,608.24x = 478,268,644,971,294,080
  5. Step 5: Solve for x
    x = 478,268,644,971,294,080/673,730,608.24
  6. Step 6: Final answer
    x = 709,881,129.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.