Home / 698,688,840.80-1,048,033,261.20-440,195,938.40

Finding the Fourth Proportional to 698,688,840.80, 1,048,033,261.20 and 440,195,938.40

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Solution

The fourth proportional to 698,688,840.80, 1,048,033,261.20 and 440,195,938.40 is: 660,293,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,688,840.80 : 1,048,033,261.20 = 440,195,938.40 : x
  2. Step 2: Convert to fraction form
    698,688,840.80/1,048,033,261.20 = 440,195,938.40/x
  3. Step 3: Cross multiply
    698,688,840.80x = 1,048,033,261.20 × 440,195,938.40
  4. Step 4: Simplify right side
    698,688,840.80x = 461,339,984,888,346,304
  5. Step 5: Solve for x
    x = 461,339,984,888,346,304/698,688,840.80
  6. Step 6: Final answer
    x = 660,293,907.60

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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.