Home / 21,292,660,910.40-31,935,968,056.80-7,318,927,636.80

Finding the Fourth Proportional to 21,292,660,910.40, 31,935,968,056.80 and 7,318,927,636.80

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Solution

The fourth proportional to 21,292,660,910.40, 31,935,968,056.80 and 7,318,927,636.80 is: 10,977,352,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292,660,910.40 : 31,935,968,056.80 = 7,318,927,636.80 : x
  2. Step 2: Convert to fraction form
    21,292,660,910.40/31,935,968,056.80 = 7,318,927,636.80/x
  3. Step 3: Cross multiply
    21,292,660,910.40x = 31,935,968,056.80 × 7,318,927,636.80
  4. Step 4: Simplify right side
    21,292,660,910.40x = 233,737,039,218,875,498,496
  5. Step 5: Solve for x
    x = 233,737,039,218,875,498,496/21,292,660,910.40
  6. Step 6: Final answer
    x = 10,977,352,253.08

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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.