Home / 830,510,213.65-1,245,889,193.52-305,838,973.73

Finding the Fourth Proportional to 830,510,213.65, 1,245,889,193.52 and 305,838,973.73

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Solution

The fourth proportional to 830,510,213.65, 1,245,889,193.52 and 305,838,973.73 is: 458,804,077.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,510,213.65 : 1,245,889,193.52 = 305,838,973.73 : x
  2. Step 2: Convert to fraction form
    830,510,213.65/1,245,889,193.52 = 305,838,973.73/x
  3. Step 3: Cross multiply
    830,510,213.65x = 1,245,889,193.52 × 305,838,973.73
  4. Step 4: Simplify right side
    830,510,213.65x = 381,041,472,327,454,208
  5. Step 5: Solve for x
    x = 381,041,472,327,454,208/830,510,213.65
  6. Step 6: Final answer
    x = 458,804,077.38

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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.