Home / 85,591,995,701.58-128,276,307,491.88-47,817,045,197.25

Finding the Fourth Proportional to 85,591,995,701.58, 128,276,307,491.88 and 47,817,045,197.25

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Solution

The fourth proportional to 85,591,995,701.58, 128,276,307,491.88 and 47,817,045,197.25 is: 71,663,172,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591,995,701.58 : 128,276,307,491.88 = 47,817,045,197.25 : x
  2. Step 2: Convert to fraction form
    85,591,995,701.58/128,276,307,491.88 = 47,817,045,197.25/x
  3. Step 3: Cross multiply
    85,591,995,701.58x = 128,276,307,491.88 × 47,817,045,197.25
  4. Step 4: Simplify right side
    85,591,995,701.58x = 6,133,793,993,075,565,002,752
  5. Step 5: Solve for x
    x = 6,133,793,993,075,565,002,752/85,591,995,701.58
  6. Step 6: Final answer
    x = 71,663,172,973.10

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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.