Home / 289,514,035.71-399,533,415.30-157,354,992.63

Finding the Fourth Proportional to 289,514,035.71, 399,533,415.30 and 157,354,992.63

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Solution

The fourth proportional to 289,514,035.71, 399,533,415.30 and 157,354,992.63 is: 217,152,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,514,035.71 : 399,533,415.30 = 157,354,992.63 : x
  2. Step 2: Convert to fraction form
    289,514,035.71/399,533,415.30 = 157,354,992.63/x
  3. Step 3: Cross multiply
    289,514,035.71x = 399,533,415.30 × 157,354,992.63
  4. Step 4: Simplify right side
    289,514,035.71x = 62,868,577,619,970,232
  5. Step 5: Solve for x
    x = 62,868,577,619,970,232/289,514,035.71
  6. Step 6: Final answer
    x = 217,152,088.90

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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.