Home / 209,894,407.02-289,663,042.23-115,814,656.94

Finding the Fourth Proportional to 209,894,407.02, 289,663,042.23 and 115,814,656.94

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Solution

The fourth proportional to 209,894,407.02, 289,663,042.23 and 115,814,656.94 is: 159,829,060.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,894,407.02 : 289,663,042.23 = 115,814,656.94 : x
  2. Step 2: Convert to fraction form
    209,894,407.02/289,663,042.23 = 115,814,656.94/x
  3. Step 3: Cross multiply
    209,894,407.02x = 289,663,042.23 × 115,814,656.94
  4. Step 4: Simplify right side
    209,894,407.02x = 33,547,225,862,615,872
  5. Step 5: Solve for x
    x = 33,547,225,862,615,872/209,894,407.02
  6. Step 6: Final answer
    x = 159,829,060.43

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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.