Home / 1,287,323,274.40-1,930,984,911.60-317,974,890.40

Finding the Fourth Proportional to 1,287,323,274.40, 1,930,984,911.60 and 317,974,890.40

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Solution

The fourth proportional to 1,287,323,274.40, 1,930,984,911.60 and 317,974,890.40 is: 476,962,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,323,274.40 : 1,930,984,911.60 = 317,974,890.40 : x
  2. Step 2: Convert to fraction form
    1,287,323,274.40/1,930,984,911.60 = 317,974,890.40/x
  3. Step 3: Cross multiply
    1,287,323,274.40x = 1,930,984,911.60 × 317,974,890.40
  4. Step 4: Simplify right side
    1,287,323,274.40x = 614,004,715,630,063,616
  5. Step 5: Solve for x
    x = 614,004,715,630,063,616/1,287,323,274.40
  6. Step 6: Final answer
    x = 476,962,335.60

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Double scale
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1.5x scale

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.