Home / 879,178,701.80-1,318,768,052.70-265,683,211.40

Finding the Fourth Proportional to 879,178,701.80, 1,318,768,052.70 and 265,683,211.40

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Solution

The fourth proportional to 879,178,701.80, 1,318,768,052.70 and 265,683,211.40 is: 398,524,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,178,701.80 : 1,318,768,052.70 = 265,683,211.40 : x
  2. Step 2: Convert to fraction form
    879,178,701.80/1,318,768,052.70 = 265,683,211.40/x
  3. Step 3: Cross multiply
    879,178,701.80x = 1,318,768,052.70 × 265,683,211.40
  4. Step 4: Simplify right side
    879,178,701.80x = 350,374,531,333,060,480
  5. Step 5: Solve for x
    x = 350,374,531,333,060,480/879,178,701.80
  6. Step 6: Final answer
    x = 398,524,817.10

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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.