Home / 28,937,948,268.80-43,392,018,315.32-12,988,611,772.66

Finding the Fourth Proportional to 28,937,948,268.80, 43,392,018,315.32 and 12,988,611,772.66

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Solution

The fourth proportional to 28,937,948,268.80, 43,392,018,315.32 and 12,988,611,772.66 is: 19,476,228,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937,948,268.80 : 43,392,018,315.32 = 12,988,611,772.66 : x
  2. Step 2: Convert to fraction form
    28,937,948,268.80/43,392,018,315.32 = 12,988,611,772.66/x
  3. Step 3: Cross multiply
    28,937,948,268.80x = 43,392,018,315.32 × 12,988,611,772.66
  4. Step 4: Simplify right side
    28,937,948,268.80x = 563,602,079,929,861,079,040
  5. Step 5: Solve for x
    x = 563,602,079,929,861,079,040/28,937,948,268.80
  6. Step 6: Final answer
    x = 19,476,228,055.10

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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.