Home / 1,142,138,828.70-1,713,214,154.88-519,918,917.22

Finding the Fourth Proportional to 1,142,138,828.70, 1,713,214,154.88 and 519,918,917.22

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Solution

The fourth proportional to 1,142,138,828.70, 1,713,214,154.88 and 519,918,917.22 is: 779,881,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,138,828.70 : 1,713,214,154.88 = 519,918,917.22 : x
  2. Step 2: Convert to fraction form
    1,142,138,828.70/1,713,214,154.88 = 519,918,917.22/x
  3. Step 3: Cross multiply
    1,142,138,828.70x = 1,713,214,154.88 × 519,918,917.22
  4. Step 4: Simplify right side
    1,142,138,828.70x = 890,732,448,371,187,072
  5. Step 5: Solve for x
    x = 890,732,448,371,187,072/1,142,138,828.70
  6. Step 6: Final answer
    x = 779,881,066.98

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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.