Home / 390,986,268,941.80-586,162,914,063.60-122,236,913,133.43

Finding the Fourth Proportional to 390,986,268,941.80, 586,162,914,063.60 and 122,236,913,133.43

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Solution

The fourth proportional to 390,986,268,941.80, 586,162,914,063.60 and 122,236,913,133.43 is: 183,256,423,307.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,986,268,941.80 : 586,162,914,063.60 = 122,236,913,133.43 : x
  2. Step 2: Convert to fraction form
    390,986,268,941.80/586,162,914,063.60 = 122,236,913,133.43/x
  3. Step 3: Cross multiply
    390,986,268,941.80x = 586,162,914,063.60 × 122,236,913,133.43
  4. Step 4: Simplify right side
    390,986,268,941.80x = 71,650,745,208,430,460,403,712
  5. Step 5: Solve for x
    x = 71,650,745,208,430,460,403,712/390,986,268,941.80
  6. Step 6: Final answer
    x = 183,256,423,307.02

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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.