Home / 1,287,724,841.75-1,777,445,646.21-752,021,010

Finding the Fourth Proportional to 1,287,724,841.75, 1,777,445,646.21 and 752,021,010

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Solution

The fourth proportional to 1,287,724,841.75, 1,777,445,646.21 and 752,021,010 is: 1,038,014,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,724,841.75 : 1,777,445,646.21 = 752,021,010 : x
  2. Step 2: Convert to fraction form
    1,287,724,841.75/1,777,445,646.21 = 752,021,010/x
  3. Step 3: Cross multiply
    1,287,724,841.75x = 1,777,445,646.21 × 752,021,010
  4. Step 4: Simplify right side
    1,287,724,841.75x = 1,336,676,470,082,946,816
  5. Step 5: Solve for x
    x = 1,336,676,470,082,946,816/1,287,724,841.75
  6. Step 6: Final answer
    x = 1,038,014,043.64

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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.