Home / 730,373,541.21-1,007,327,783.75-642,078,752.49

Finding the Fourth Proportional to 730,373,541.21, 1,007,327,783.75 and 642,078,752.49

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Solution

The fourth proportional to 730,373,541.21, 1,007,327,783.75 and 642,078,752.49 is: 885,552,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,373,541.21 : 1,007,327,783.75 = 642,078,752.49 : x
  2. Step 2: Convert to fraction form
    730,373,541.21/1,007,327,783.75 = 642,078,752.49/x
  3. Step 3: Cross multiply
    730,373,541.21x = 1,007,327,783.75 × 642,078,752.49
  4. Step 4: Simplify right side
    730,373,541.21x = 646,783,766,735,506,176
  5. Step 5: Solve for x
    x = 646,783,766,735,506,176/730,373,541.21
  6. Step 6: Final answer
    x = 885,552,022.69

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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.