Home / 256,392,030.30-384,588,045.45-120,343,134.30

Finding the Fourth Proportional to 256,392,030.30, 384,588,045.45 and 120,343,134.30

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Solution

The fourth proportional to 256,392,030.30, 384,588,045.45 and 120,343,134.30 is: 180,514,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,392,030.30 : 384,588,045.45 = 120,343,134.30 : x
  2. Step 2: Convert to fraction form
    256,392,030.30/384,588,045.45 = 120,343,134.30/x
  3. Step 3: Cross multiply
    256,392,030.30x = 384,588,045.45 × 120,343,134.30
  4. Step 4: Simplify right side
    256,392,030.30x = 46,282,530,803,763,848
  5. Step 5: Solve for x
    x = 46,282,530,803,763,848/256,392,030.30
  6. Step 6: Final answer
    x = 180,514,701.45

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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.