Home / 1,294,581,411.70-1,942,061,074.35-421,034,125.30

Finding the Fourth Proportional to 1,294,581,411.70, 1,942,061,074.35 and 421,034,125.30

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Solution

The fourth proportional to 1,294,581,411.70, 1,942,061,074.35 and 421,034,125.30 is: 631,612,641.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,581,411.70 : 1,942,061,074.35 = 421,034,125.30 : x
  2. Step 2: Convert to fraction form
    1,294,581,411.70/1,942,061,074.35 = 421,034,125.30/x
  3. Step 3: Cross multiply
    1,294,581,411.70x = 1,942,061,074.35 × 421,034,125.30
  4. Step 4: Simplify right side
    1,294,581,411.70x = 817,673,985,718,130,560
  5. Step 5: Solve for x
    x = 817,673,985,718,130,560/1,294,581,411.70
  6. Step 6: Final answer
    x = 631,612,641.99

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Double scale
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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.