Home / 28,937,948,327.28-43,392,018,403.08-12,988,611,831.24

Finding the Fourth Proportional to 28,937,948,327.28, 43,392,018,403.08 and 12,988,611,831.24

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Solution

The fourth proportional to 28,937,948,327.28, 43,392,018,403.08 and 12,988,611,831.24 is: 19,476,228,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937,948,327.28 : 43,392,018,403.08 = 12,988,611,831.24 : x
  2. Step 2: Convert to fraction form
    28,937,948,327.28/43,392,018,403.08 = 12,988,611,831.24/x
  3. Step 3: Cross multiply
    28,937,948,327.28x = 43,392,018,403.08 × 12,988,611,831.24
  4. Step 4: Simplify right side
    28,937,948,327.28x = 563,602,083,611,628,732,416
  5. Step 5: Solve for x
    x = 563,602,083,611,628,732,416/28,937,948,327.28
  6. Step 6: Final answer
    x = 19,476,228,142.97

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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.