Home / 1,209,509,909.40-1,814,600,787.30-519,747,605.40

Finding the Fourth Proportional to 1,209,509,909.40, 1,814,600,787.30 and 519,747,605.40

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Solution

The fourth proportional to 1,209,509,909.40, 1,814,600,787.30 and 519,747,605.40 is: 779,765,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,509,909.40 : 1,814,600,787.30 = 519,747,605.40 : x
  2. Step 2: Convert to fraction form
    1,209,509,909.40/1,814,600,787.30 = 519,747,605.40/x
  3. Step 3: Cross multiply
    1,209,509,909.40x = 1,814,600,787.30 × 519,747,605.40
  4. Step 4: Simplify right side
    1,209,509,909.40x = 943,134,413,956,129,664
  5. Step 5: Solve for x
    x = 943,134,413,956,129,664/1,209,509,909.40
  6. Step 6: Final answer
    x = 779,765,760.19

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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.