Home / 1,278,779,204.40-1,764,696,674.61-714,272,118.72

Finding the Fourth Proportional to 1,278,779,204.40, 1,764,696,674.61 and 714,272,118.72

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Solution

The fourth proportional to 1,278,779,204.40, 1,764,696,674.61 and 714,272,118.72 is: 985,685,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,779,204.40 : 1,764,696,674.61 = 714,272,118.72 : x
  2. Step 2: Convert to fraction form
    1,278,779,204.40/1,764,696,674.61 = 714,272,118.72/x
  3. Step 3: Cross multiply
    1,278,779,204.40x = 1,764,696,674.61 × 714,272,118.72
  4. Step 4: Simplify right side
    1,278,779,204.40x = 1,260,473,632,671,823,104
  5. Step 5: Solve for x
    x = 1,260,473,632,671,823,104/1,278,779,204.40
  6. Step 6: Final answer
    x = 985,685,119.32

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Double scale
Find fourth proportional to 1,278,779,205.40, 1,764,696,675.99 and 714,272,119.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.