Home / 1,411,588,471.18-1,947,981,339.96-776,495,322.40

Finding the Fourth Proportional to 1,411,588,471.18, 1,947,981,339.96 and 776,495,322.40

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Solution

The fourth proportional to 1,411,588,471.18, 1,947,981,339.96 and 776,495,322.40 is: 1,071,557,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,588,471.18 : 1,947,981,339.96 = 776,495,322.40 : x
  2. Step 2: Convert to fraction form
    1,411,588,471.18/1,947,981,339.96 = 776,495,322.40/x
  3. Step 3: Cross multiply
    1,411,588,471.18x = 1,947,981,339.96 × 776,495,322.40
  4. Step 4: Simplify right side
    1,411,588,471.18x = 1,512,598,398,601,424,128
  5. Step 5: Solve for x
    x = 1,512,598,398,601,424,128/1,411,588,471.18
  6. Step 6: Final answer
    x = 1,071,557,631.34

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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.