Home / 162,415,235.20-243,622,852.80-80,502,462.40

Finding the Fourth Proportional to 162,415,235.20, 243,622,852.80 and 80,502,462.40

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Solution

The fourth proportional to 162,415,235.20, 243,622,852.80 and 80,502,462.40 is: 120,753,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,415,235.20 : 243,622,852.80 = 80,502,462.40 : x
  2. Step 2: Convert to fraction form
    162,415,235.20/243,622,852.80 = 80,502,462.40/x
  3. Step 3: Cross multiply
    162,415,235.20x = 243,622,852.80 × 80,502,462.40
  4. Step 4: Simplify right side
    162,415,235.20x = 19,612,239,547,312,736
  5. Step 5: Solve for x
    x = 19,612,239,547,312,736/162,415,235.20
  6. Step 6: Final answer
    x = 120,753,693.60

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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.