Home / 731,421,835.80-1,009,074,788.82-417,987,897

Finding the Fourth Proportional to 731,421,835.80, 1,009,074,788.82 and 417,987,897

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Solution

The fourth proportional to 731,421,835.80, 1,009,074,788.82 and 417,987,897 is: 576,659,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,421,835.80 : 1,009,074,788.82 = 417,987,897 : x
  2. Step 2: Convert to fraction form
    731,421,835.80/1,009,074,788.82 = 417,987,897/x
  3. Step 3: Cross multiply
    731,421,835.80x = 1,009,074,788.82 × 417,987,897
  4. Step 4: Simplify right side
    731,421,835.80x = 421,781,048,894,590,912
  5. Step 5: Solve for x
    x = 421,781,048,894,590,912/731,421,835.80
  6. Step 6: Final answer
    x = 576,659,088.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.