Home / 20,432,913,687.60-30,649,370,531.40-9,412,953,111.60

Finding the Fourth Proportional to 20,432,913,687.60, 30,649,370,531.40 and 9,412,953,111.60

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Solution

The fourth proportional to 20,432,913,687.60, 30,649,370,531.40 and 9,412,953,111.60 is: 14,119,429,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432,913,687.60 : 30,649,370,531.40 = 9,412,953,111.60 : x
  2. Step 2: Convert to fraction form
    20,432,913,687.60/30,649,370,531.40 = 9,412,953,111.60/x
  3. Step 3: Cross multiply
    20,432,913,687.60x = 30,649,370,531.40 × 9,412,953,111.60
  4. Step 4: Simplify right side
    20,432,913,687.60x = 288,501,087,712,122,994,688
  5. Step 5: Solve for x
    x = 288,501,087,712,122,994,688/20,432,913,687.60
  6. Step 6: Final answer
    x = 14,119,429,667.40

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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.