Home / 5,280,588,014.15-7,920,882,021.23-4,428,262,938.35

Finding the Fourth Proportional to 5,280,588,014.15, 7,920,882,021.23 and 4,428,262,938.35

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Solution

The fourth proportional to 5,280,588,014.15, 7,920,882,021.23 and 4,428,262,938.35 is: 6,642,394,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,588,014.15 : 7,920,882,021.23 = 4,428,262,938.35 : x
  2. Step 2: Convert to fraction form
    5,280,588,014.15/7,920,882,021.23 = 4,428,262,938.35/x
  3. Step 3: Cross multiply
    5,280,588,014.15x = 7,920,882,021.23 × 4,428,262,938.35
  4. Step 4: Simplify right side
    5,280,588,014.15x = 35,075,748,293,655,646,208
  5. Step 5: Solve for x
    x = 35,075,748,293,655,646,208/5,280,588,014.15
  6. Step 6: Final answer
    x = 6,642,394,407.53

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Double scale
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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.