Home / 20,710,881,589.93-31,062,921,162.47-8,916,824,840.65

Finding the Fourth Proportional to 20,710,881,589.93, 31,062,921,162.47 and 8,916,824,840.65

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Solution

The fourth proportional to 20,710,881,589.93, 31,062,921,162.47 and 8,916,824,840.65 is: 13,373,772,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,881,589.93 : 31,062,921,162.47 = 8,916,824,840.65 : x
  2. Step 2: Convert to fraction form
    20,710,881,589.93/31,062,921,162.47 = 8,916,824,840.65/x
  3. Step 3: Cross multiply
    20,710,881,589.93x = 31,062,921,162.47 × 8,916,824,840.65
  4. Step 4: Simplify right side
    20,710,881,589.93x = 276,982,627,044,665,065,472
  5. Step 5: Solve for x
    x = 276,982,627,044,665,065,472/20,710,881,589.93
  6. Step 6: Final answer
    x = 13,373,772,904.93

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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.