Home / 879,063,774.40-1,318,595,661.60-265,742,660.80

Finding the Fourth Proportional to 879,063,774.40, 1,318,595,661.60 and 265,742,660.80

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Solution

The fourth proportional to 879,063,774.40, 1,318,595,661.60 and 265,742,660.80 is: 398,613,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,063,774.40 : 1,318,595,661.60 = 265,742,660.80 : x
  2. Step 2: Convert to fraction form
    879,063,774.40/1,318,595,661.60 = 265,742,660.80/x
  3. Step 3: Cross multiply
    879,063,774.40x = 1,318,595,661.60 × 265,742,660.80
  4. Step 4: Simplify right side
    879,063,774.40x = 350,407,119,632,920,384
  5. Step 5: Solve for x
    x = 350,407,119,632,920,384/879,063,774.40
  6. Step 6: Final answer
    x = 398,613,991.20

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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.