Home / 85,473,615.40-128,210,423.10-36,917,622.70

Finding the Fourth Proportional to 85,473,615.40, 128,210,423.10 and 36,917,622.70

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Solution

The fourth proportional to 85,473,615.40, 128,210,423.10 and 36,917,622.70 is: 55,376,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473,615.40 : 128,210,423.10 = 36,917,622.70 : x
  2. Step 2: Convert to fraction form
    85,473,615.40/128,210,423.10 = 36,917,622.70/x
  3. Step 3: Cross multiply
    85,473,615.40x = 128,210,423.10 × 36,917,622.70
  4. Step 4: Simplify right side
    85,473,615.40x = 4,733,224,026,213,165
  5. Step 5: Solve for x
    x = 4,733,224,026,213,165/85,473,615.40
  6. Step 6: Final answer
    x = 55,376,434.05

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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.