Home / 130,500,145.57-180,046,128.60-73,978,831.87

Finding the Fourth Proportional to 130,500,145.57, 180,046,128.60 and 73,978,831.87

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Solution

The fourth proportional to 130,500,145.57, 180,046,128.60 and 73,978,831.87 is: 102,065,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,500,145.57 : 180,046,128.60 = 73,978,831.87 : x
  2. Step 2: Convert to fraction form
    130,500,145.57/180,046,128.60 = 73,978,831.87/x
  3. Step 3: Cross multiply
    130,500,145.57x = 180,046,128.60 × 73,978,831.87
  4. Step 4: Simplify right side
    130,500,145.57x = 13,319,602,276,543,798
  5. Step 5: Solve for x
    x = 13,319,602,276,543,798/130,500,145.57
  6. Step 6: Final answer
    x = 102,065,803.98

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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.