Home / 21,113,918,014.40-31,662,814,864.80-6,387,044,926.40

Finding the Fourth Proportional to 21,113,918,014.40, 31,662,814,864.80 and 6,387,044,926.40

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Solution

The fourth proportional to 21,113,918,014.40, 31,662,814,864.80 and 6,387,044,926.40 is: 9,578,128,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,113,918,014.40 : 31,662,814,864.80 = 6,387,044,926.40 : x
  2. Step 2: Convert to fraction form
    21,113,918,014.40/31,662,814,864.80 = 6,387,044,926.40/x
  3. Step 3: Cross multiply
    21,113,918,014.40x = 31,662,814,864.80 × 6,387,044,926.40
  4. Step 4: Simplify right side
    21,113,918,014.40x = 202,231,821,037,763,330,048
  5. Step 5: Solve for x
    x = 202,231,821,037,763,330,048/21,113,918,014.40
  6. Step 6: Final answer
    x = 9,578,128,554.82

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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.