Home / 477,730,629.46-658,928,667.36-318,880,663.78

Finding the Fourth Proportional to 477,730,629.46, 658,928,667.36 and 318,880,663.78

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Solution

The fourth proportional to 477,730,629.46, 658,928,667.36 and 318,880,663.78 is: 439,828,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,730,629.46 : 658,928,667.36 = 318,880,663.78 : x
  2. Step 2: Convert to fraction form
    477,730,629.46/658,928,667.36 = 318,880,663.78/x
  3. Step 3: Cross multiply
    477,730,629.46x = 658,928,667.36 × 318,880,663.78
  4. Step 4: Simplify right side
    477,730,629.46x = 210,119,610,831,427,616
  5. Step 5: Solve for x
    x = 210,119,610,831,427,616/477,730,629.46
  6. Step 6: Final answer
    x = 439,828,635.37

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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.