Home / 1,451,962,172.80-2,178,793,564.80-531,931,513.60

Finding the Fourth Proportional to 1,451,962,172.80, 2,178,793,564.80 and 531,931,513.60

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Solution

The fourth proportional to 1,451,962,172.80, 2,178,793,564.80 and 531,931,513.60 is: 798,208,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,962,172.80 : 2,178,793,564.80 = 531,931,513.60 : x
  2. Step 2: Convert to fraction form
    1,451,962,172.80/2,178,793,564.80 = 531,931,513.60/x
  3. Step 3: Cross multiply
    1,451,962,172.80x = 2,178,793,564.80 × 531,931,513.60
  4. Step 4: Simplify right side
    1,451,962,172.80x = 1,158,968,958,746,003,712
  5. Step 5: Solve for x
    x = 1,158,968,958,746,003,712/1,451,962,172.80
  6. Step 6: Final answer
    x = 798,208,782.89

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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.