Home / 879,063,756.40-1,318,595,634.60-265,742,642.80

Finding the Fourth Proportional to 879,063,756.40, 1,318,595,634.60 and 265,742,642.80

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Solution

The fourth proportional to 879,063,756.40, 1,318,595,634.60 and 265,742,642.80 is: 398,613,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,063,756.40 : 1,318,595,634.60 = 265,742,642.80 : x
  2. Step 2: Convert to fraction form
    879,063,756.40/1,318,595,634.60 = 265,742,642.80/x
  3. Step 3: Cross multiply
    879,063,756.40x = 1,318,595,634.60 × 265,742,642.80
  4. Step 4: Simplify right side
    879,063,756.40x = 350,407,088,723,147,136
  5. Step 5: Solve for x
    x = 350,407,088,723,147,136/879,063,756.40
  6. Step 6: Final answer
    x = 398,613,964.20

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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.