Home / 1,211,133,815.30-1,817,551,028.55-521,535,973.70

Finding the Fourth Proportional to 1,211,133,815.30, 1,817,551,028.55 and 521,535,973.70

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Solution

The fourth proportional to 1,211,133,815.30, 1,817,551,028.55 and 521,535,973.70 is: 782,670,117.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,133,815.30 : 1,817,551,028.55 = 521,535,973.70 : x
  2. Step 2: Convert to fraction form
    1,211,133,815.30/1,817,551,028.55 = 521,535,973.70/x
  3. Step 3: Cross multiply
    1,211,133,815.30x = 1,817,551,028.55 × 521,535,973.70
  4. Step 4: Simplify right side
    1,211,133,815.30x = 947,918,245,424,260,736
  5. Step 5: Solve for x
    x = 947,918,245,424,260,736/1,211,133,815.30
  6. Step 6: Final answer
    x = 782,670,117.41

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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.