Home / 435,617,999.20-653,426,998.80-281,429,250.40

Finding the Fourth Proportional to 435,617,999.20, 653,426,998.80 and 281,429,250.40

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Solution

The fourth proportional to 435,617,999.20, 653,426,998.80 and 281,429,250.40 is: 422,143,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,617,999.20 : 653,426,998.80 = 281,429,250.40 : x
  2. Step 2: Convert to fraction form
    435,617,999.20/653,426,998.80 = 281,429,250.40/x
  3. Step 3: Cross multiply
    435,617,999.20x = 653,426,998.80 × 281,429,250.40
  4. Step 4: Simplify right side
    435,617,999.20x = 183,893,470,463,405,664
  5. Step 5: Solve for x
    x = 183,893,470,463,405,664/435,617,999.20
  6. Step 6: Final answer
    x = 422,143,875.60

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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.