Home / 18,917,481,168.86-28,376,249,063.67-7,725,355,343.57

Finding the Fourth Proportional to 18,917,481,168.86, 28,376,249,063.67 and 7,725,355,343.57

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Solution

The fourth proportional to 18,917,481,168.86, 28,376,249,063.67 and 7,725,355,343.57 is: 11,588,044,168.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917,481,168.86 : 28,376,249,063.67 = 7,725,355,343.57 : x
  2. Step 2: Convert to fraction form
    18,917,481,168.86/28,376,249,063.67 = 7,725,355,343.57/x
  3. Step 3: Cross multiply
    18,917,481,168.86x = 28,376,249,063.67 × 7,725,355,343.57
  4. Step 4: Simplify right side
    18,917,481,168.86x = 219,216,607,334,315,720,704
  5. Step 5: Solve for x
    x = 219,216,607,334,315,720,704/18,917,481,168.86
  6. Step 6: Final answer
    x = 11,588,044,168.12

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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.