Home / 928,119,580.78-1,392,792,703.19-436,973,308.78

Finding the Fourth Proportional to 928,119,580.78, 1,392,792,703.19 and 436,973,308.78

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Solution

The fourth proportional to 928,119,580.78, 1,392,792,703.19 and 436,973,308.78 is: 655,748,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,119,580.78 : 1,392,792,703.19 = 436,973,308.78 : x
  2. Step 2: Convert to fraction form
    928,119,580.78/1,392,792,703.19 = 436,973,308.78/x
  3. Step 3: Cross multiply
    928,119,580.78x = 1,392,792,703.19 × 436,973,308.78
  4. Step 4: Simplify right side
    928,119,580.78x = 608,613,235,959,808,640
  5. Step 5: Solve for x
    x = 608,613,235,959,808,640/928,119,580.78
  6. Step 6: Final answer
    x = 655,748,729.54

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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.