Home / 658,939,791.63-909,334,417.95-361,587,009.87

Finding the Fourth Proportional to 658,939,791.63, 909,334,417.95 and 361,587,009.87

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Solution

The fourth proportional to 658,939,791.63, 909,334,417.95 and 361,587,009.87 is: 498,988,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,939,791.63 : 909,334,417.95 = 361,587,009.87 : x
  2. Step 2: Convert to fraction form
    658,939,791.63/909,334,417.95 = 361,587,009.87/x
  3. Step 3: Cross multiply
    658,939,791.63x = 909,334,417.95 × 361,587,009.87
  4. Step 4: Simplify right side
    658,939,791.63x = 328,803,513,158,417,408
  5. Step 5: Solve for x
    x = 328,803,513,158,417,408/658,939,791.63
  6. Step 6: Final answer
    x = 498,988,704.79

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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.