Home / 1,190,775,159.76-1,643,475,404.59-689,260,463.94

Finding the Fourth Proportional to 1,190,775,159.76, 1,643,475,404.59 and 689,260,463.94

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Solution

The fourth proportional to 1,190,775,159.76, 1,643,475,404.59 and 689,260,463.94 is: 951,298,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,775,159.76 : 1,643,475,404.59 = 689,260,463.94 : x
  2. Step 2: Convert to fraction form
    1,190,775,159.76/1,643,475,404.59 = 689,260,463.94/x
  3. Step 3: Cross multiply
    1,190,775,159.76x = 1,643,475,404.59 × 689,260,463.94
  4. Step 4: Simplify right side
    1,190,775,159.76x = 1,132,782,619,841,682,688
  5. Step 5: Solve for x
    x = 1,132,782,619,841,682,688/1,190,775,159.76
  6. Step 6: Final answer
    x = 951,298,497.08

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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.