Home / 70,429,591.70-105,553,461.30-31,539,569.72

Finding the Fourth Proportional to 70,429,591.70, 105,553,461.30 and 31,539,569.72

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Solution

The fourth proportional to 70,429,591.70, 105,553,461.30 and 31,539,569.72 is: 47,268,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,429,591.70 : 105,553,461.30 = 31,539,569.72 : x
  2. Step 2: Convert to fraction form
    70,429,591.70/105,553,461.30 = 31,539,569.72/x
  3. Step 3: Cross multiply
    70,429,591.70x = 105,553,461.30 × 31,539,569.72
  4. Step 4: Simplify right side
    70,429,591.70x = 3,329,110,751,858,671.50
  5. Step 5: Solve for x
    x = 3,329,110,751,858,671.50/70,429,591.70
  6. Step 6: Final answer
    x = 47,268,636.26

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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.