Home / 288,147,946.47-397,644,294.50-155,988,938.71

Finding the Fourth Proportional to 288,147,946.47, 397,644,294.50 and 155,988,938.71

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Solution

The fourth proportional to 288,147,946.47, 397,644,294.50 and 155,988,938.71 is: 215,264,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,147,946.47 : 397,644,294.50 = 155,988,938.71 : x
  2. Step 2: Convert to fraction form
    288,147,946.47/397,644,294.50 = 155,988,938.71/x
  3. Step 3: Cross multiply
    288,147,946.47x = 397,644,294.50 × 155,988,938.71
  4. Step 4: Simplify right side
    288,147,946.47x = 62,028,111,483,141,696
  5. Step 5: Solve for x
    x = 62,028,111,483,141,696/288,147,946.47
  6. Step 6: Final answer
    x = 215,264,804.91

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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.