Home / 1,015,362,021.50-1,400,683,903.88-663,144,184.34

Finding the Fourth Proportional to 1,015,362,021.50, 1,400,683,903.88 and 663,144,184.34

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Solution

The fourth proportional to 1,015,362,021.50, 1,400,683,903.88 and 663,144,184.34 is: 914,802,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,362,021.50 : 1,400,683,903.88 = 663,144,184.34 : x
  2. Step 2: Convert to fraction form
    1,015,362,021.50/1,400,683,903.88 = 663,144,184.34/x
  3. Step 3: Cross multiply
    1,015,362,021.50x = 1,400,683,903.88 × 663,144,184.34
  4. Step 4: Simplify right side
    1,015,362,021.50x = 928,855,384,951,602,944
  5. Step 5: Solve for x
    x = 928,855,384,951,602,944/1,015,362,021.50
  6. Step 6: Final answer
    x = 914,802,174.28

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Double scale
Find fourth proportional to 1,015,362,022.50, 1,400,683,905.25 and 663,144,185.34
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.