Home / 68,713,264,572.19-103,084,807,390.74-20,905,031,508.21

Finding the Fourth Proportional to 68,713,264,572.19, 103,084,807,390.74 and 20,905,031,508.21

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Solution

The fourth proportional to 68,713,264,572.19, 103,084,807,390.74 and 20,905,031,508.21 is: 31,362,083,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,713,264,572.19 : 103,084,807,390.74 = 20,905,031,508.21 : x
  2. Step 2: Convert to fraction form
    68,713,264,572.19/103,084,807,390.74 = 20,905,031,508.21/x
  3. Step 3: Cross multiply
    68,713,264,572.19x = 103,084,807,390.74 × 20,905,031,508.21
  4. Step 4: Simplify right side
    68,713,264,572.19x = 2,154,991,146,521,178,669,056
  5. Step 5: Solve for x
    x = 2,154,991,146,521,178,669,056/68,713,264,572.19
  6. Step 6: Final answer
    x = 31,362,083,579.32

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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.