Home / 210,013,431.60-315,020,147.40-136,036,844.40

Finding the Fourth Proportional to 210,013,431.60, 315,020,147.40 and 136,036,844.40

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Solution

The fourth proportional to 210,013,431.60, 315,020,147.40 and 136,036,844.40 is: 204,055,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,013,431.60 : 315,020,147.40 = 136,036,844.40 : x
  2. Step 2: Convert to fraction form
    210,013,431.60/315,020,147.40 = 136,036,844.40/x
  3. Step 3: Cross multiply
    210,013,431.60x = 315,020,147.40 × 136,036,844.40
  4. Step 4: Simplify right side
    210,013,431.60x = 42,854,346,774,718,864
  5. Step 5: Solve for x
    x = 42,854,346,774,718,864/210,013,431.60
  6. Step 6: Final answer
    x = 204,055,266.60

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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.