Home / 196,102,145.40-293,397,390.90-128,077,697.40

Finding the Fourth Proportional to 196,102,145.40, 293,397,390.90 and 128,077,697.40

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Solution

The fourth proportional to 196,102,145.40, 293,397,390.90 and 128,077,697.40 is: 191,622,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,102,145.40 : 293,397,390.90 = 128,077,697.40 : x
  2. Step 2: Convert to fraction form
    196,102,145.40/293,397,390.90 = 128,077,697.40/x
  3. Step 3: Cross multiply
    196,102,145.40x = 293,397,390.90 × 128,077,697.40
  4. Step 4: Simplify right side
    196,102,145.40x = 37,577,662,249,639,712
  5. Step 5: Solve for x
    x = 37,577,662,249,639,712/196,102,145.40
  6. Step 6: Final answer
    x = 191,622,902.30

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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.