Home / 289,721,386.60-434,582,079.90-221,696,938.60

Finding the Fourth Proportional to 289,721,386.60, 434,582,079.90 and 221,696,938.60

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Solution

The fourth proportional to 289,721,386.60, 434,582,079.90 and 221,696,938.60 is: 332,545,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,721,386.60 : 434,582,079.90 = 221,696,938.60 : x
  2. Step 2: Convert to fraction form
    289,721,386.60/434,582,079.90 = 221,696,938.60/x
  3. Step 3: Cross multiply
    289,721,386.60x = 434,582,079.90 × 221,696,938.60
  4. Step 4: Simplify right side
    289,721,386.60x = 96,345,516,684,250,592
  5. Step 5: Solve for x
    x = 96,345,516,684,250,592/289,721,386.60
  6. Step 6: Final answer
    x = 332,545,407.90

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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.