Home / 1,021,620,573.92-1,409,836,338.38-551,721,849.48

Finding the Fourth Proportional to 1,021,620,573.92, 1,409,836,338.38 and 551,721,849.48

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Solution

The fourth proportional to 1,021,620,573.92, 1,409,836,338.38 and 551,721,849.48 is: 761,376,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,573.92 : 1,409,836,338.38 = 551,721,849.48 : x
  2. Step 2: Convert to fraction form
    1,021,620,573.92/1,409,836,338.38 = 551,721,849.48/x
  3. Step 3: Cross multiply
    1,021,620,573.92x = 1,409,836,338.38 × 551,721,849.48
  4. Step 4: Simplify right side
    1,021,620,573.92x = 777,837,512,075,124,736
  5. Step 5: Solve for x
    x = 777,837,512,075,124,736/1,021,620,573.92
  6. Step 6: Final answer
    x = 761,376,123.32

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Half scale
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Double scale
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1.5x scale

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.