Home / 156,357,478.72-215,683,673.52-97,517,991.52

Finding the Fourth Proportional to 156,357,478.72, 215,683,673.52 and 97,517,991.52

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Solution

The fourth proportional to 156,357,478.72, 215,683,673.52 and 97,517,991.52 is: 134,518,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,357,478.72 : 215,683,673.52 = 97,517,991.52 : x
  2. Step 2: Convert to fraction form
    156,357,478.72/215,683,673.52 = 97,517,991.52/x
  3. Step 3: Cross multiply
    156,357,478.72x = 215,683,673.52 × 97,517,991.52
  4. Step 4: Simplify right side
    156,357,478.72x = 21,033,038,645,325,808
  5. Step 5: Solve for x
    x = 21,033,038,645,325,808/156,357,478.72
  6. Step 6: Final answer
    x = 134,518,916.64

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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.