Home / 102,791,421.70-153,884,199.03-90,036,837.70

Finding the Fourth Proportional to 102,791,421.70, 153,884,199.03 and 90,036,837.70

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Solution

The fourth proportional to 102,791,421.70, 153,884,199.03 and 90,036,837.70 is: 134,789,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,791,421.70 : 153,884,199.03 = 90,036,837.70 : x
  2. Step 2: Convert to fraction form
    102,791,421.70/153,884,199.03 = 90,036,837.70/x
  3. Step 3: Cross multiply
    102,791,421.70x = 153,884,199.03 × 90,036,837.70
  4. Step 4: Simplify right side
    102,791,421.70x = 13,855,246,652,658,608
  5. Step 5: Solve for x
    x = 13,855,246,652,658,608/102,791,421.70
  6. Step 6: Final answer
    x = 134,789,911.68

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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.