Home / 56,772,232.40-78,345,709.44-30,666,748.88

Finding the Fourth Proportional to 56,772,232.40, 78,345,709.44 and 30,666,748.88

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Solution

The fourth proportional to 56,772,232.40, 78,345,709.44 and 30,666,748.88 is: 42,320,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772,232.40 : 78,345,709.44 = 30,666,748.88 : x
  2. Step 2: Convert to fraction form
    56,772,232.40/78,345,709.44 = 30,666,748.88/x
  3. Step 3: Cross multiply
    56,772,232.40x = 78,345,709.44 × 30,666,748.88
  4. Step 4: Simplify right side
    56,772,232.40x = 2,402,608,197,221,925.50
  5. Step 5: Solve for x
    x = 2,402,608,197,221,925.50/56,772,232.40
  6. Step 6: Final answer
    x = 42,320,128.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.