Home / 280,901,197.76-421,365,897.28-89,439,903.68

Finding the Fourth Proportional to 280,901,197.76, 421,365,897.28 and 89,439,903.68

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Solution

The fourth proportional to 280,901,197.76, 421,365,897.28 and 89,439,903.68 is: 134,164,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,901,197.76 : 421,365,897.28 = 89,439,903.68 : x
  2. Step 2: Convert to fraction form
    280,901,197.76/421,365,897.28 = 89,439,903.68/x
  3. Step 3: Cross multiply
    280,901,197.76x = 421,365,897.28 × 89,439,903.68
  4. Step 4: Simplify right side
    280,901,197.76x = 37,686,925,266,759,976
  5. Step 5: Solve for x
    x = 37,686,925,266,759,976/280,901,197.76
  6. Step 6: Final answer
    x = 134,164,345.21

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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.