Home / 151,395,257,657.47-208,880,098,186.44-87,164,330,510.55

Finding the Fourth Proportional to 151,395,257,657.47, 208,880,098,186.44 and 87,164,330,510.55

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Solution

The fourth proportional to 151,395,257,657.47, 208,880,098,186.44 and 87,164,330,510.55 is: 120,260,662,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,395,257,657.47 : 208,880,098,186.44 = 87,164,330,510.55 : x
  2. Step 2: Convert to fraction form
    151,395,257,657.47/208,880,098,186.44 = 87,164,330,510.55/x
  3. Step 3: Cross multiply
    151,395,257,657.47x = 208,880,098,186.44 × 87,164,330,510.55
  4. Step 4: Simplify right side
    151,395,257,657.47x = 18,206,893,915,398,991,773,696
  5. Step 5: Solve for x
    x = 18,206,893,915,398,991,773,696/151,395,257,657.47
  6. Step 6: Final answer
    x = 120,260,662,038.65

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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.