Home / 778,407,701.40-1,167,611,552.10-260,666,069.40

Finding the Fourth Proportional to 778,407,701.40, 1,167,611,552.10 and 260,666,069.40

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Solution

The fourth proportional to 778,407,701.40, 1,167,611,552.10 and 260,666,069.40 is: 390,999,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,407,701.40 : 1,167,611,552.10 = 260,666,069.40 : x
  2. Step 2: Convert to fraction form
    778,407,701.40/1,167,611,552.10 = 260,666,069.40/x
  3. Step 3: Cross multiply
    778,407,701.40x = 1,167,611,552.10 × 260,666,069.40
  4. Step 4: Simplify right side
    778,407,701.40x = 304,356,713,871,940,288
  5. Step 5: Solve for x
    x = 304,356,713,871,940,288/778,407,701.40
  6. Step 6: Final answer
    x = 390,999,104.10

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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.