Home / 1,374,578,385.12-1,896,980,636.12-810,087,091.20

Finding the Fourth Proportional to 1,374,578,385.12, 1,896,980,636.12 and 810,087,091.20

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Solution

The fourth proportional to 1,374,578,385.12, 1,896,980,636.12 and 810,087,091.20 is: 1,117,956,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,578,385.12 : 1,896,980,636.12 = 810,087,091.20 : x
  2. Step 2: Convert to fraction form
    1,374,578,385.12/1,896,980,636.12 = 810,087,091.20/x
  3. Step 3: Cross multiply
    1,374,578,385.12x = 1,896,980,636.12 × 810,087,091.20
  4. Step 4: Simplify right side
    1,374,578,385.12x = 1,536,719,525,573,126,144
  5. Step 5: Solve for x
    x = 1,536,719,525,573,126,144/1,374,578,385.12
  6. Step 6: Final answer
    x = 1,117,956,998.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.