Home / 92,572,671.20-138,859,006.80-77,568,101.60

Finding the Fourth Proportional to 92,572,671.20, 138,859,006.80 and 77,568,101.60

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Solution

The fourth proportional to 92,572,671.20, 138,859,006.80 and 77,568,101.60 is: 116,352,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,572,671.20 : 138,859,006.80 = 77,568,101.60 : x
  2. Step 2: Convert to fraction form
    92,572,671.20/138,859,006.80 = 77,568,101.60/x
  3. Step 3: Cross multiply
    92,572,671.20x = 138,859,006.80 × 77,568,101.60
  4. Step 4: Simplify right side
    92,572,671.20x = 10,771,029,547,537,490
  5. Step 5: Solve for x
    x = 10,771,029,547,537,490/92,572,671.20
  6. Step 6: Final answer
    x = 116,352,152.40

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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.