Home / 807,158,663.92-1,210,738,011.90-193,742,889.76

Finding the Fourth Proportional to 807,158,663.92, 1,210,738,011.90 and 193,742,889.76

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Solution

The fourth proportional to 807,158,663.92, 1,210,738,011.90 and 193,742,889.76 is: 290,614,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,158,663.92 : 1,210,738,011.90 = 193,742,889.76 : x
  2. Step 2: Convert to fraction form
    807,158,663.92/1,210,738,011.90 = 193,742,889.76/x
  3. Step 3: Cross multiply
    807,158,663.92x = 1,210,738,011.90 × 193,742,889.76
  4. Step 4: Simplify right side
    807,158,663.92x = 234,571,881,167,783,264
  5. Step 5: Solve for x
    x = 234,571,881,167,783,264/807,158,663.92
  6. Step 6: Final answer
    x = 290,614,338.49

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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.