Home / 196,286,938,499.76-293,826,527,836.68-128,071,115,275.08

Finding the Fourth Proportional to 196,286,938,499.76, 293,826,527,836.68 and 128,071,115,275.08

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Solution

The fourth proportional to 196,286,938,499.76, 293,826,527,836.68 and 128,071,115,275.08 is: 191,712,660,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,286,938,499.76 : 293,826,527,836.68 = 128,071,115,275.08 : x
  2. Step 2: Convert to fraction form
    196,286,938,499.76/293,826,527,836.68 = 128,071,115,275.08/x
  3. Step 3: Cross multiply
    196,286,938,499.76x = 293,826,527,836.68 × 128,071,115,275.08
  4. Step 4: Simplify right side
    196,286,938,499.76x = 37,630,691,117,447,948,271,616
  5. Step 5: Solve for x
    x = 37,630,691,117,447,948,271,616/196,286,938,499.76
  6. Step 6: Final answer
    x = 191,712,660,073.38

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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.