Home / 142,492,916,888.52-196,644,065,351.63-83,835,833,347.68

Finding the Fourth Proportional to 142,492,916,888.52, 196,644,065,351.63 and 83,835,833,347.68

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Solution

The fourth proportional to 142,492,916,888.52, 196,644,065,351.63 and 83,835,833,347.68 is: 115,695,709,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,492,916,888.52 : 196,644,065,351.63 = 83,835,833,347.68 : x
  2. Step 2: Convert to fraction form
    142,492,916,888.52/196,644,065,351.63 = 83,835,833,347.68/x
  3. Step 3: Cross multiply
    142,492,916,888.52x = 196,644,065,351.63 × 83,835,833,347.68
  4. Step 4: Simplify right side
    142,492,916,888.52x = 16,485,819,091,629,547,454,464
  5. Step 5: Solve for x
    x = 16,485,819,091,629,547,454,464/142,492,916,888.52
  6. Step 6: Final answer
    x = 115,695,709,313.94

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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.