Home / 1,410,144,125.80-2,115,216,188.70-1,385,957,655.40

Finding the Fourth Proportional to 1,410,144,125.80, 2,115,216,188.70 and 1,385,957,655.40

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Solution

The fourth proportional to 1,410,144,125.80, 2,115,216,188.70 and 1,385,957,655.40 is: 2,078,936,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410,144,125.80 : 2,115,216,188.70 = 1,385,957,655.40 : x
  2. Step 2: Convert to fraction form
    1,410,144,125.80/2,115,216,188.70 = 1,385,957,655.40/x
  3. Step 3: Cross multiply
    1,410,144,125.80x = 2,115,216,188.70 × 1,385,957,655.40
  4. Step 4: Simplify right side
    1,410,144,125.80x = 2,931,600,069,554,776,064
  5. Step 5: Solve for x
    x = 2,931,600,069,554,776,064/1,410,144,125.80
  6. Step 6: Final answer
    x = 2,078,936,483.10

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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.