Home / 829,921,695.47-1,145,293,055.78-477,490,617.62

Finding the Fourth Proportional to 829,921,695.47, 1,145,293,055.78 and 477,490,617.62

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Solution

The fourth proportional to 829,921,695.47, 1,145,293,055.78 and 477,490,617.62 is: 658,937,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,921,695.47 : 1,145,293,055.78 = 477,490,617.62 : x
  2. Step 2: Convert to fraction form
    829,921,695.47/1,145,293,055.78 = 477,490,617.62/x
  3. Step 3: Cross multiply
    829,921,695.47x = 1,145,293,055.78 × 477,490,617.62
  4. Step 4: Simplify right side
    829,921,695.47x = 546,866,688,560,289,280
  5. Step 5: Solve for x
    x = 546,866,688,560,289,280/829,921,695.47
  6. Step 6: Final answer
    x = 658,937,694.42

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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.