Home / 679,937,158.40-1,019,905,737.60-543,888,262.40

Finding the Fourth Proportional to 679,937,158.40, 1,019,905,737.60 and 543,888,262.40

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Solution

The fourth proportional to 679,937,158.40, 1,019,905,737.60 and 543,888,262.40 is: 815,832,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,937,158.40 : 1,019,905,737.60 = 543,888,262.40 : x
  2. Step 2: Convert to fraction form
    679,937,158.40/1,019,905,737.60 = 543,888,262.40/x
  3. Step 3: Cross multiply
    679,937,158.40x = 1,019,905,737.60 × 543,888,262.40
  4. Step 4: Simplify right side
    679,937,158.40x = 554,714,759,435,054,336
  5. Step 5: Solve for x
    x = 554,714,759,435,054,336/679,937,158.40
  6. Step 6: Final answer
    x = 815,832,393.60

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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.