Home / 1,208,955,208.60-1,813,432,812.90-442,950,779.80

Finding the Fourth Proportional to 1,208,955,208.60, 1,813,432,812.90 and 442,950,779.80

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Solution

The fourth proportional to 1,208,955,208.60, 1,813,432,812.90 and 442,950,779.80 is: 664,426,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,955,208.60 : 1,813,432,812.90 = 442,950,779.80 : x
  2. Step 2: Convert to fraction form
    1,208,955,208.60/1,813,432,812.90 = 442,950,779.80/x
  3. Step 3: Cross multiply
    1,208,955,208.60x = 1,813,432,812.90 × 442,950,779.80
  4. Step 4: Simplify right side
    1,208,955,208.60x = 803,261,478,588,962,560
  5. Step 5: Solve for x
    x = 803,261,478,588,962,560/1,208,955,208.60
  6. Step 6: Final answer
    x = 664,426,169.70

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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.