Home / 901,370,439.40-1,243,898,511.08-499,490,902.32

Finding the Fourth Proportional to 901,370,439.40, 1,243,898,511.08 and 499,490,902.32

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Solution

The fourth proportional to 901,370,439.40, 1,243,898,511.08 and 499,490,902.32 is: 689,301,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,370,439.40 : 1,243,898,511.08 = 499,490,902.32 : x
  2. Step 2: Convert to fraction form
    901,370,439.40/1,243,898,511.08 = 499,490,902.32/x
  3. Step 3: Cross multiply
    901,370,439.40x = 1,243,898,511.08 × 499,490,902.32
  4. Step 4: Simplify right side
    901,370,439.40x = 621,315,989,693,853,696
  5. Step 5: Solve for x
    x = 621,315,989,693,853,696/901,370,439.40
  6. Step 6: Final answer
    x = 689,301,493.08

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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.