Home / 47,949,689.48-66,148,132.02-31,425,417.32

Finding the Fourth Proportional to 47,949,689.48, 66,148,132.02 and 31,425,417.32

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Solution

The fourth proportional to 47,949,689.48, 66,148,132.02 and 31,425,417.32 is: 43,352,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,949,689.48 : 66,148,132.02 = 31,425,417.32 : x
  2. Step 2: Convert to fraction form
    47,949,689.48/66,148,132.02 = 31,425,417.32/x
  3. Step 3: Cross multiply
    47,949,689.48x = 66,148,132.02 × 31,425,417.32
  4. Step 4: Simplify right side
    47,949,689.48x = 2,078,732,653,666,954.75
  5. Step 5: Solve for x
    x = 2,078,732,653,666,954.75/47,949,689.48
  6. Step 6: Final answer
    x = 43,352,369.46

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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.