Home / 618,098,688,081.45-927,148,032,122.17-518,919,042,897.45

Finding the Fourth Proportional to 618,098,688,081.45, 927,148,032,122.17 and 518,919,042,897.45

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Solution

The fourth proportional to 618,098,688,081.45, 927,148,032,122.17 and 518,919,042,897.45 is: 778,378,564,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,098,688,081.45 : 927,148,032,122.17 = 518,919,042,897.45 : x
  2. Step 2: Convert to fraction form
    618,098,688,081.45/927,148,032,122.17 = 518,919,042,897.45/x
  3. Step 3: Cross multiply
    618,098,688,081.45x = 927,148,032,122.17 × 518,919,042,897.45
  4. Step 4: Simplify right side
    618,098,688,081.45x = 481,114,769,453,090,705,768,448
  5. Step 5: Solve for x
    x = 481,114,769,453,090,705,768,448/618,098,688,081.45
  6. Step 6: Final answer
    x = 778,378,564,346.17

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Double scale
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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.