Home / 1,047,938,731.80-1,571,908,097.70-639,792,043.80

Finding the Fourth Proportional to 1,047,938,731.80, 1,571,908,097.70 and 639,792,043.80

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Solution

The fourth proportional to 1,047,938,731.80, 1,571,908,097.70 and 639,792,043.80 is: 959,688,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,938,731.80 : 1,571,908,097.70 = 639,792,043.80 : x
  2. Step 2: Convert to fraction form
    1,047,938,731.80/1,571,908,097.70 = 639,792,043.80/x
  3. Step 3: Cross multiply
    1,047,938,731.80x = 1,571,908,097.70 × 639,792,043.80
  4. Step 4: Simplify right side
    1,047,938,731.80x = 1,005,694,294,493,252,992
  5. Step 5: Solve for x
    x = 1,005,694,294,493,252,992/1,047,938,731.80
  6. Step 6: Final answer
    x = 959,688,065.70

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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.