Home / 157,516,782,807.60-217,373,170,889.16-86,231,412,831.60

Finding the Fourth Proportional to 157,516,782,807.60, 217,373,170,889.16 and 86,231,412,831.60

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Solution

The fourth proportional to 157,516,782,807.60, 217,373,170,889.16 and 86,231,412,831.60 is: 118,999,355,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,516,782,807.60 : 217,373,170,889.16 = 86,231,412,831.60 : x
  2. Step 2: Convert to fraction form
    157,516,782,807.60/217,373,170,889.16 = 86,231,412,831.60/x
  3. Step 3: Cross multiply
    157,516,782,807.60x = 217,373,170,889.16 × 86,231,412,831.60
  4. Step 4: Simplify right side
    157,516,782,807.60x = 18,744,395,637,457,093,132,288
  5. Step 5: Solve for x
    x = 18,744,395,637,457,093,132,288/157,516,782,807.60
  6. Step 6: Final answer
    x = 118,999,355,518.53

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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.