Home / 708,574,563.20-1,062,861,844.80-402,809,801.60

Finding the Fourth Proportional to 708,574,563.20, 1,062,861,844.80 and 402,809,801.60

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Solution

The fourth proportional to 708,574,563.20, 1,062,861,844.80 and 402,809,801.60 is: 604,214,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,574,563.20 : 1,062,861,844.80 = 402,809,801.60 : x
  2. Step 2: Convert to fraction form
    708,574,563.20/1,062,861,844.80 = 402,809,801.60/x
  3. Step 3: Cross multiply
    708,574,563.20x = 1,062,861,844.80 × 402,809,801.60
  4. Step 4: Simplify right side
    708,574,563.20x = 428,131,168,832,097,984
  5. Step 5: Solve for x
    x = 428,131,168,832,097,984/708,574,563.20
  6. Step 6: Final answer
    x = 604,214,702.40

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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.