Home / 156,656,165.32-216,118,544.34-97,878,790.72

Finding the Fourth Proportional to 156,656,165.32, 216,118,544.34 and 97,878,790.72

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Solution

The fourth proportional to 156,656,165.32, 216,118,544.34 and 97,878,790.72 is: 135,030,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,656,165.32 : 216,118,544.34 = 97,878,790.72 : x
  2. Step 2: Convert to fraction form
    156,656,165.32/216,118,544.34 = 97,878,790.72/x
  3. Step 3: Cross multiply
    156,656,165.32x = 216,118,544.34 × 97,878,790.72
  4. Step 4: Simplify right side
    156,656,165.32x = 21,153,421,772,165,900
  5. Step 5: Solve for x
    x = 21,153,421,772,165,900/156,656,165.32
  6. Step 6: Final answer
    x = 135,030,892.20

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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.