Home / 354,295,818.40-531,443,727.60-318,464,010.40

Finding the Fourth Proportional to 354,295,818.40, 531,443,727.60 and 318,464,010.40

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Solution

The fourth proportional to 354,295,818.40, 531,443,727.60 and 318,464,010.40 is: 477,696,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,818.40 : 531,443,727.60 = 318,464,010.40 : x
  2. Step 2: Convert to fraction form
    354,295,818.40/531,443,727.60 = 318,464,010.40/x
  3. Step 3: Cross multiply
    354,295,818.40x = 531,443,727.60 × 318,464,010.40
  4. Step 4: Simplify right side
    354,295,818.40x = 169,245,700,793,421,152
  5. Step 5: Solve for x
    x = 169,245,700,793,421,152/354,295,818.40
  6. Step 6: Final answer
    x = 477,696,015.60

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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.