Home / 1,043,539,816.53-1,440,242,362.85-636,406,723.70

Finding the Fourth Proportional to 1,043,539,816.53, 1,440,242,362.85 and 636,406,723.70

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Solution

The fourth proportional to 1,043,539,816.53, 1,440,242,362.85 and 636,406,723.70 is: 878,337,279.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043,539,816.53 : 1,440,242,362.85 = 636,406,723.70 : x
  2. Step 2: Convert to fraction form
    1,043,539,816.53/1,440,242,362.85 = 636,406,723.70/x
  3. Step 3: Cross multiply
    1,043,539,816.53x = 1,440,242,362.85 × 636,406,723.70
  4. Step 4: Simplify right side
    1,043,539,816.53x = 916,579,923,475,315,072
  5. Step 5: Solve for x
    x = 916,579,923,475,315,072/1,043,539,816.53
  6. Step 6: Final answer
    x = 878,337,279.48

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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.