Home / 78,147,614.50-117,065,116.12-47,006,075.40

Finding the Fourth Proportional to 78,147,614.50, 117,065,116.12 and 47,006,075.40

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Solution

The fourth proportional to 78,147,614.50, 117,065,116.12 and 47,006,075.40 is: 70,415,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,147,614.50 : 117,065,116.12 = 47,006,075.40 : x
  2. Step 2: Convert to fraction form
    78,147,614.50/117,065,116.12 = 47,006,075.40/x
  3. Step 3: Cross multiply
    78,147,614.50x = 117,065,116.12 × 47,006,075.40
  4. Step 4: Simplify right side
    78,147,614.50x = 5,502,771,675,046,475
  5. Step 5: Solve for x
    x = 5,502,771,675,046,475/78,147,614.50
  6. Step 6: Final answer
    x = 70,415,094.69

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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.