Home / 430,393,954,586.59-645,681,601,296.65-139,615,845,822.61

Finding the Fourth Proportional to 430,393,954,586.59, 645,681,601,296.65 and 139,615,845,822.61

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Solution

The fourth proportional to 430,393,954,586.59, 645,681,601,296.65 and 139,615,845,822.61 is: 209,453,181,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,393,954,586.59 : 645,681,601,296.65 = 139,615,845,822.61 : x
  2. Step 2: Convert to fraction form
    430,393,954,586.59/645,681,601,296.65 = 139,615,845,822.61/x
  3. Step 3: Cross multiply
    430,393,954,586.59x = 645,681,601,296.65 × 139,615,845,822.61
  4. Step 4: Simplify right side
    430,393,954,586.59x = 90,147,382,897,129,029,632,000
  5. Step 5: Solve for x
    x = 90,147,382,897,129,029,632,000/430,393,954,586.59
  6. Step 6: Final answer
    x = 209,453,181,059.94

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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.