Home / 85,473,631.40-128,210,447.10-36,917,638.70

Finding the Fourth Proportional to 85,473,631.40, 128,210,447.10 and 36,917,638.70

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Solution

The fourth proportional to 85,473,631.40, 128,210,447.10 and 36,917,638.70 is: 55,376,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473,631.40 : 128,210,447.10 = 36,917,638.70 : x
  2. Step 2: Convert to fraction form
    85,473,631.40/128,210,447.10 = 36,917,638.70/x
  3. Step 3: Cross multiply
    85,473,631.40x = 128,210,447.10 × 36,917,638.70
  4. Step 4: Simplify right side
    85,473,631.40x = 4,733,226,963,603,263
  5. Step 5: Solve for x
    x = 4,733,226,963,603,263/85,473,631.40
  6. Step 6: Final answer
    x = 55,376,458.05

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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.