Home / 829,076,017.30-1,243,047,155.55-392,585,809.30

Finding the Fourth Proportional to 829,076,017.30, 1,243,047,155.55 and 392,585,809.30

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Solution

The fourth proportional to 829,076,017.30, 1,243,047,155.55 and 392,585,809.30 is: 588,610,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,076,017.30 : 1,243,047,155.55 = 392,585,809.30 : x
  2. Step 2: Convert to fraction form
    829,076,017.30/1,243,047,155.55 = 392,585,809.30/x
  3. Step 3: Cross multiply
    829,076,017.30x = 1,243,047,155.55 × 392,585,809.30
  4. Step 4: Simplify right side
    829,076,017.30x = 488,002,673,559,659,712
  5. Step 5: Solve for x
    x = 488,002,673,559,659,712/829,076,017.30
  6. Step 6: Final answer
    x = 588,610,288.29

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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.