Home / 85,773,846-128,676,709.80-28,270,157.52

Finding the Fourth Proportional to 85,773,846, 128,676,709.80 and 28,270,157.52

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Solution

The fourth proportional to 85,773,846, 128,676,709.80 and 28,270,157.52 is: 42,410,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,773,846 : 128,676,709.80 = 28,270,157.52 : x
  2. Step 2: Convert to fraction form
    85,773,846/128,676,709.80 = 28,270,157.52/x
  3. Step 3: Cross multiply
    85,773,846x = 128,676,709.80 × 28,270,157.52
  4. Step 4: Simplify right side
    85,773,846x = 3,637,710,855,201,327.50
  5. Step 5: Solve for x
    x = 3,637,710,855,201,327.50/85,773,846
  6. Step 6: Final answer
    x = 42,410,490.20

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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.