Home / 919,461,053.53-1,268,855,920.20-501,773,338.83

Finding the Fourth Proportional to 919,461,053.53, 1,268,855,920.20 and 501,773,338.83

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Solution

The fourth proportional to 919,461,053.53, 1,268,855,920.20 and 501,773,338.83 is: 692,447,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,461,053.53 : 1,268,855,920.20 = 501,773,338.83 : x
  2. Step 2: Convert to fraction form
    919,461,053.53/1,268,855,920.20 = 501,773,338.83/x
  3. Step 3: Cross multiply
    919,461,053.53x = 1,268,855,920.20 × 501,773,338.83
  4. Step 4: Simplify right side
    919,461,053.53x = 636,678,071,572,487,296
  5. Step 5: Solve for x
    x = 636,678,071,572,487,296/919,461,053.53
  6. Step 6: Final answer
    x = 692,447,025.49

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Double scale
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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.