Home / 646,605,806.40-969,908,709.60-442,532,462.40

Finding the Fourth Proportional to 646,605,806.40, 969,908,709.60 and 442,532,462.40

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Solution

The fourth proportional to 646,605,806.40, 969,908,709.60 and 442,532,462.40 is: 663,798,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,605,806.40 : 969,908,709.60 = 442,532,462.40 : x
  2. Step 2: Convert to fraction form
    646,605,806.40/969,908,709.60 = 442,532,462.40/x
  3. Step 3: Cross multiply
    646,605,806.40x = 969,908,709.60 × 442,532,462.40
  4. Step 4: Simplify right side
    646,605,806.40x = 429,216,089,562,494,528
  5. Step 5: Solve for x
    x = 429,216,089,562,494,528/646,605,806.40
  6. Step 6: Final answer
    x = 663,798,693.60

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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.