Home / 66,076,204,859.68-99,133,648,084.80-21,306,801,178.72

Finding the Fourth Proportional to 66,076,204,859.68, 99,133,648,084.80 and 21,306,801,178.72

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Solution

The fourth proportional to 66,076,204,859.68, 99,133,648,084.80 and 21,306,801,178.72 is: 31,966,438,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,076,204,859.68 : 99,133,648,084.80 = 21,306,801,178.72 : x
  2. Step 2: Convert to fraction form
    66,076,204,859.68/99,133,648,084.80 = 21,306,801,178.72/x
  3. Step 3: Cross multiply
    66,076,204,859.68x = 99,133,648,084.80 × 21,306,801,178.72
  4. Step 4: Simplify right side
    66,076,204,859.68x = 2,112,220,929,864,030,486,528
  5. Step 5: Solve for x
    x = 2,112,220,929,864,030,486,528/66,076,204,859.68
  6. Step 6: Final answer
    x = 31,966,438,362.34

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1.5x scale

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.