Home / 115,920,006.10-173,880,009.15-87,009,615.70

Finding the Fourth Proportional to 115,920,006.10, 173,880,009.15 and 87,009,615.70

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Solution

The fourth proportional to 115,920,006.10, 173,880,009.15 and 87,009,615.70 is: 130,514,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920,006.10 : 173,880,009.15 = 87,009,615.70 : x
  2. Step 2: Convert to fraction form
    115,920,006.10/173,880,009.15 = 87,009,615.70/x
  3. Step 3: Cross multiply
    115,920,006.10x = 173,880,009.15 × 87,009,615.70
  4. Step 4: Simplify right side
    115,920,006.10x = 15,129,232,774,053,984
  5. Step 5: Solve for x
    x = 15,129,232,774,053,984/115,920,006.10
  6. Step 6: Final answer
    x = 130,514,423.55

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1.5x scale

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.