Home / 517,742,621.28-776,616,835.16-172,695,301.02

Finding the Fourth Proportional to 517,742,621.28, 776,616,835.16 and 172,695,301.02

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Solution

The fourth proportional to 517,742,621.28, 776,616,835.16 and 172,695,301.02 is: 259,043,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,742,621.28 : 776,616,835.16 = 172,695,301.02 : x
  2. Step 2: Convert to fraction form
    517,742,621.28/776,616,835.16 = 172,695,301.02/x
  3. Step 3: Cross multiply
    517,742,621.28x = 776,616,835.16 × 172,695,301.02
  4. Step 4: Simplify right side
    517,742,621.28x = 134,118,078,125,587,664
  5. Step 5: Solve for x
    x = 134,118,078,125,587,664/517,742,621.28
  6. Step 6: Final answer
    x = 259,043,919.92

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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.