Home / 21,208,852,125.06-31,816,547,047.98-7,231,205,157.55

Finding the Fourth Proportional to 21,208,852,125.06, 31,816,547,047.98 and 7,231,205,157.55

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Solution

The fourth proportional to 21,208,852,125.06, 31,816,547,047.98 and 7,231,205,157.55 is: 10,847,922,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,852,125.06 : 31,816,547,047.98 = 7,231,205,157.55 : x
  2. Step 2: Convert to fraction form
    21,208,852,125.06/31,816,547,047.98 = 7,231,205,157.55/x
  3. Step 3: Cross multiply
    21,208,852,125.06x = 31,816,547,047.98 × 7,231,205,157.55
  4. Step 4: Simplify right side
    21,208,852,125.06x = 230,071,979,108,749,049,856
  5. Step 5: Solve for x
    x = 230,071,979,108,749,049,856/21,208,852,125.06
  6. Step 6: Final answer
    x = 10,847,922,261.52

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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.