Home / 85,536,417.30-128,210,147.55-47,225,426.10

Finding the Fourth Proportional to 85,536,417.30, 128,210,147.55 and 47,225,426.10

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Solution

The fourth proportional to 85,536,417.30, 128,210,147.55 and 47,225,426.10 is: 70,785,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,417.30 : 128,210,147.55 = 47,225,426.10 : x
  2. Step 2: Convert to fraction form
    85,536,417.30/128,210,147.55 = 47,225,426.10/x
  3. Step 3: Cross multiply
    85,536,417.30x = 128,210,147.55 × 47,225,426.10
  4. Step 4: Simplify right side
    85,536,417.30x = 6,054,778,848,392,621
  5. Step 5: Solve for x
    x = 6,054,778,848,392,621/85,536,417.30
  6. Step 6: Final answer
    x = 70,785,976.77

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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.