Home / 186,637,222,969.12-257,531,661,138.72-113,355,319,158.40

Finding the Fourth Proportional to 186,637,222,969.12, 257,531,661,138.72 and 113,355,319,158.40

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Solution

The fourth proportional to 186,637,222,969.12, 257,531,661,138.72 and 113,355,319,158.40 is: 156,413,512,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,637,222,969.12 : 257,531,661,138.72 = 113,355,319,158.40 : x
  2. Step 2: Convert to fraction form
    186,637,222,969.12/257,531,661,138.72 = 113,355,319,158.40/x
  3. Step 3: Cross multiply
    186,637,222,969.12x = 257,531,661,138.72 × 113,355,319,158.40
  4. Step 4: Simplify right side
    186,637,222,969.12x = 29,192,583,641,772,524,044,288
  5. Step 5: Solve for x
    x = 29,192,583,641,772,524,044,288/186,637,222,969.12
  6. Step 6: Final answer
    x = 156,413,512,681.78

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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.