Home / 780,487,900.52-1,076,974,008.60-445,982,106.02

Finding the Fourth Proportional to 780,487,900.52, 1,076,974,008.60 and 445,982,106.02

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Solution

The fourth proportional to 780,487,900.52, 1,076,974,008.60 and 445,982,106.02 is: 615,398,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,487,900.52 : 1,076,974,008.60 = 445,982,106.02 : x
  2. Step 2: Convert to fraction form
    780,487,900.52/1,076,974,008.60 = 445,982,106.02/x
  3. Step 3: Cross multiply
    780,487,900.52x = 1,076,974,008.60 × 445,982,106.02
  4. Step 4: Simplify right side
    780,487,900.52x = 480,311,136,484,229,504
  5. Step 5: Solve for x
    x = 480,311,136,484,229,504/780,487,900.52
  6. Step 6: Final answer
    x = 615,398,568.21

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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.