Home / 930,888,969.60-1,396,333,454.40-317,493,206.40

Finding the Fourth Proportional to 930,888,969.60, 1,396,333,454.40 and 317,493,206.40

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Solution

The fourth proportional to 930,888,969.60, 1,396,333,454.40 and 317,493,206.40 is: 476,239,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,888,969.60 : 1,396,333,454.40 = 317,493,206.40 : x
  2. Step 2: Convert to fraction form
    930,888,969.60/1,396,333,454.40 = 317,493,206.40/x
  3. Step 3: Cross multiply
    930,888,969.60x = 1,396,333,454.40 × 317,493,206.40
  4. Step 4: Simplify right side
    930,888,969.60x = 443,326,385,641,044,160
  5. Step 5: Solve for x
    x = 443,326,385,641,044,160/930,888,969.60
  6. Step 6: Final answer
    x = 476,239,809.60

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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.