Home / 517,742,621.66-776,616,835.73-172,695,301.40

Finding the Fourth Proportional to 517,742,621.66, 776,616,835.73 and 172,695,301.40

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Solution

The fourth proportional to 517,742,621.66, 776,616,835.73 and 172,695,301.40 is: 259,043,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,742,621.66 : 776,616,835.73 = 172,695,301.40 : x
  2. Step 2: Convert to fraction form
    517,742,621.66/776,616,835.73 = 172,695,301.40/x
  3. Step 3: Cross multiply
    517,742,621.66x = 776,616,835.73 × 172,695,301.40
  4. Step 4: Simplify right side
    517,742,621.66x = 134,118,078,513,960,096
  5. Step 5: Solve for x
    x = 134,118,078,513,960,096/517,742,621.66
  6. Step 6: Final answer
    x = 259,043,920.48

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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.