Home / 879,087,772.40-1,318,820,615.40-265,733,999.60

Finding the Fourth Proportional to 879,087,772.40, 1,318,820,615.40 and 265,733,999.60

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Solution

The fourth proportional to 879,087,772.40, 1,318,820,615.40 and 265,733,999.60 is: 398,658,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,087,772.40 : 1,318,820,615.40 = 265,733,999.60 : x
  2. Step 2: Convert to fraction form
    879,087,772.40/1,318,820,615.40 = 265,733,999.60/x
  3. Step 3: Cross multiply
    879,087,772.40x = 1,318,820,615.40 × 265,733,999.60
  4. Step 4: Simplify right side
    879,087,772.40x = 350,455,476,885,175,360
  5. Step 5: Solve for x
    x = 350,455,476,885,175,360/879,087,772.40
  6. Step 6: Final answer
    x = 398,658,117.98

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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.