Home / 5,280,588,003.90-7,920,882,005.85-4,428,262,928.10

Finding the Fourth Proportional to 5,280,588,003.90, 7,920,882,005.85 and 4,428,262,928.10

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Solution

The fourth proportional to 5,280,588,003.90, 7,920,882,005.85 and 4,428,262,928.10 is: 6,642,394,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,588,003.90 : 7,920,882,005.85 = 4,428,262,928.10 : x
  2. Step 2: Convert to fraction form
    5,280,588,003.90/7,920,882,005.85 = 4,428,262,928.10/x
  3. Step 3: Cross multiply
    5,280,588,003.90x = 7,920,882,005.85 × 4,428,262,928.10
  4. Step 4: Simplify right side
    5,280,588,003.90x = 35,075,748,144,359,927,808
  5. Step 5: Solve for x
    x = 35,075,748,144,359,927,808/5,280,588,003.90
  6. Step 6: Final answer
    x = 6,642,394,392.15

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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.