Home / 156,756,795.12-216,325,954.53-86,196,126.96

Finding the Fourth Proportional to 156,756,795.12, 216,325,954.53 and 86,196,126.96

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Solution

The fourth proportional to 156,756,795.12, 216,325,954.53 and 86,196,126.96 is: 118,951,522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,756,795.12 : 216,325,954.53 = 86,196,126.96 : x
  2. Step 2: Convert to fraction form
    156,756,795.12/216,325,954.53 = 86,196,126.96/x
  3. Step 3: Cross multiply
    156,756,795.12x = 216,325,954.53 × 86,196,126.96
  4. Step 4: Simplify right side
    156,756,795.12x = 18,646,459,441,411,064
  5. Step 5: Solve for x
    x = 18,646,459,441,411,064/156,756,795.12
  6. Step 6: Final answer
    x = 118,951,522.50

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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.