Home / 1,214,863,811,429.30-1,821,020,089,776-408,750,890,951.70

Finding the Fourth Proportional to 1,214,863,811,429.30, 1,821,020,089,776 and 408,750,890,951.70

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Solution

The fourth proportional to 1,214,863,811,429.30, 1,821,020,089,776 and 408,750,890,951.70 is: 612,697,141,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,863,811,429.30 : 1,821,020,089,776 = 408,750,890,951.70 : x
  2. Step 2: Convert to fraction form
    1,214,863,811,429.30/1,821,020,089,776 = 408,750,890,951.70/x
  3. Step 3: Cross multiply
    1,214,863,811,429.30x = 1,821,020,089,776 × 408,750,890,951.70
  4. Step 4: Simplify right side
    1,214,863,811,429.30x = 744,343,584,136,884,687,732,736
  5. Step 5: Solve for x
    x = 744,343,584,136,884,687,732,736/1,214,863,811,429.30
  6. Step 6: Final answer
    x = 612,697,141,139.76

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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.