Home / 402,991,937,431.47-556,142,597,143.65-238,334,604,043.89

Finding the Fourth Proportional to 402,991,937,431.47, 556,142,597,143.65 and 238,334,604,043.89

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Solution

The fourth proportional to 402,991,937,431.47, 556,142,597,143.65 and 238,334,604,043.89 is: 328,909,869,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,991,937,431.47 : 556,142,597,143.65 = 238,334,604,043.89 : x
  2. Step 2: Convert to fraction form
    402,991,937,431.47/556,142,597,143.65 = 238,334,604,043.89/x
  3. Step 3: Cross multiply
    402,991,937,431.47x = 556,142,597,143.65 × 238,334,604,043.89
  4. Step 4: Simplify right side
    402,991,937,431.47x = 132,548,025,682,172,458,303,488
  5. Step 5: Solve for x
    x = 132,548,025,682,172,458,303,488/402,991,937,431.47
  6. Step 6: Final answer
    x = 328,909,869,827.64

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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.