Home / 830,087,999.40-1,243,788,306.30-522,830,245.80

Finding the Fourth Proportional to 830,087,999.40, 1,243,788,306.30 and 522,830,245.80

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Solution

The fourth proportional to 830,087,999.40, 1,243,788,306.30 and 522,830,245.80 is: 783,399,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,087,999.40 : 1,243,788,306.30 = 522,830,245.80 : x
  2. Step 2: Convert to fraction form
    830,087,999.40/1,243,788,306.30 = 522,830,245.80/x
  3. Step 3: Cross multiply
    830,087,999.40x = 1,243,788,306.30 × 522,830,245.80
  4. Step 4: Simplify right side
    830,087,999.40x = 650,290,145,905,994,624
  5. Step 5: Solve for x
    x = 650,290,145,905,994,624/830,087,999.40
  6. Step 6: Final answer
    x = 783,399,044.89

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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.