Home / 979,019,481.40-1,465,127,999.70-897,390,143.80

Finding the Fourth Proportional to 979,019,481.40, 1,465,127,999.70 and 897,390,143.80

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Solution

The fourth proportional to 979,019,481.40, 1,465,127,999.70 and 897,390,143.80 is: 1,342,967,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,019,481.40 : 1,465,127,999.70 = 897,390,143.80 : x
  2. Step 2: Convert to fraction form
    979,019,481.40/1,465,127,999.70 = 897,390,143.80/x
  3. Step 3: Cross multiply
    979,019,481.40x = 1,465,127,999.70 × 897,390,143.80
  4. Step 4: Simplify right side
    979,019,481.40x = 1,314,791,426,336,189,440
  5. Step 5: Solve for x
    x = 1,314,791,426,336,189,440/979,019,481.40
  6. Step 6: Final answer
    x = 1,342,967,582.68

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1.5x scale

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.