Home / 435,455,999.40-653,183,999.10-425,378,303.40

Finding the Fourth Proportional to 435,455,999.40, 653,183,999.10 and 425,378,303.40

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Solution

The fourth proportional to 435,455,999.40, 653,183,999.10 and 425,378,303.40 is: 638,067,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,455,999.40 : 653,183,999.10 = 425,378,303.40 : x
  2. Step 2: Convert to fraction form
    435,455,999.40/653,183,999.10 = 425,378,303.40/x
  3. Step 3: Cross multiply
    435,455,999.40x = 653,183,999.10 × 425,378,303.40
  4. Step 4: Simplify right side
    435,455,999.40x = 277,850,301,345,185,120
  5. Step 5: Solve for x
    x = 277,850,301,345,185,120/435,455,999.40
  6. Step 6: Final answer
    x = 638,067,455.10

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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.