Home / 138,590,195,553.64-191,249,520,492.90-78,441,873,121

Finding the Fourth Proportional to 138,590,195,553.64, 191,249,520,492.90 and 78,441,873,121

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Solution

The fourth proportional to 138,590,195,553.64, 191,249,520,492.90 and 78,441,873,121 is: 108,246,983,569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,590,195,553.64 : 191,249,520,492.90 = 78,441,873,121 : x
  2. Step 2: Convert to fraction form
    138,590,195,553.64/191,249,520,492.90 = 78,441,873,121/x
  3. Step 3: Cross multiply
    138,590,195,553.64x = 191,249,520,492.90 × 78,441,873,121
  4. Step 4: Simplify right side
    138,590,195,553.64x = 15,001,970,620,956,149,809,152
  5. Step 5: Solve for x
    x = 15,001,970,620,956,149,809,152/138,590,195,553.64
  6. Step 6: Final answer
    x = 108,246,983,569.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.