Home / 79,781,617.40-119,672,426.10-31,243,339.40

Finding the Fourth Proportional to 79,781,617.40, 119,672,426.10 and 31,243,339.40

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Solution

The fourth proportional to 79,781,617.40, 119,672,426.10 and 31,243,339.40 is: 46,865,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,781,617.40 : 119,672,426.10 = 31,243,339.40 : x
  2. Step 2: Convert to fraction form
    79,781,617.40/119,672,426.10 = 31,243,339.40/x
  3. Step 3: Cross multiply
    79,781,617.40x = 119,672,426.10 × 31,243,339.40
  4. Step 4: Simplify right side
    79,781,617.40x = 3,738,966,225,463,718
  5. Step 5: Solve for x
    x = 3,738,966,225,463,718/79,781,617.40
  6. Step 6: Final answer
    x = 46,865,009.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.