Home / 872,069,259.78-1,307,577,008.16-347,519,059.38

Finding the Fourth Proportional to 872,069,259.78, 1,307,577,008.16 and 347,519,059.38

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Solution

The fourth proportional to 872,069,259.78, 1,307,577,008.16 and 347,519,059.38 is: 521,068,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,069,259.78 : 1,307,577,008.16 = 347,519,059.38 : x
  2. Step 2: Convert to fraction form
    872,069,259.78/1,307,577,008.16 = 347,519,059.38/x
  3. Step 3: Cross multiply
    872,069,259.78x = 1,307,577,008.16 × 347,519,059.38
  4. Step 4: Simplify right side
    872,069,259.78x = 454,407,931,942,677,824
  5. Step 5: Solve for x
    x = 454,407,931,942,677,824/872,069,259.78
  6. Step 6: Final answer
    x = 521,068,627.11

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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.