Home / 1,329,696,020.40-1,994,544,030.60-640,948,484.40

Finding the Fourth Proportional to 1,329,696,020.40, 1,994,544,030.60 and 640,948,484.40

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Solution

The fourth proportional to 1,329,696,020.40, 1,994,544,030.60 and 640,948,484.40 is: 961,422,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,696,020.40 : 1,994,544,030.60 = 640,948,484.40 : x
  2. Step 2: Convert to fraction form
    1,329,696,020.40/1,994,544,030.60 = 640,948,484.40/x
  3. Step 3: Cross multiply
    1,329,696,020.40x = 1,994,544,030.60 × 640,948,484.40
  4. Step 4: Simplify right side
    1,329,696,020.40x = 1,278,399,973,482,137,088
  5. Step 5: Solve for x
    x = 1,278,399,973,482,137,088/1,329,696,020.40
  6. Step 6: Final answer
    x = 961,422,726.60

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Double scale
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Similar ratio
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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.