Home / 1,302,201,088.40-1,955,569,114.20-689,981,056.40

Finding the Fourth Proportional to 1,302,201,088.40, 1,955,569,114.20 and 689,981,056.40

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Solution

The fourth proportional to 1,302,201,088.40, 1,955,569,114.20 and 689,981,056.40 is: 1,036,173,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,201,088.40 : 1,955,569,114.20 = 689,981,056.40 : x
  2. Step 2: Convert to fraction form
    1,302,201,088.40/1,955,569,114.20 = 689,981,056.40/x
  3. Step 3: Cross multiply
    1,302,201,088.40x = 1,955,569,114.20 × 689,981,056.40
  4. Step 4: Simplify right side
    1,302,201,088.40x = 1,349,305,643,278,928,128
  5. Step 5: Solve for x
    x = 1,349,305,643,278,928,128/1,302,201,088.40
  6. Step 6: Final answer
    x = 1,036,173,026.81

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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.