Home / 147,684,515.80-221,726,228.10-86,336,541.40

Finding the Fourth Proportional to 147,684,515.80, 221,726,228.10 and 86,336,541.40

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Solution

The fourth proportional to 147,684,515.80, 221,726,228.10 and 86,336,541.40 is: 129,621,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,684,515.80 : 221,726,228.10 = 86,336,541.40 : x
  2. Step 2: Convert to fraction form
    147,684,515.80/221,726,228.10 = 86,336,541.40/x
  3. Step 3: Cross multiply
    147,684,515.80x = 221,726,228.10 × 86,336,541.40
  4. Step 4: Simplify right side
    147,684,515.80x = 19,143,075,671,821,496
  5. Step 5: Solve for x
    x = 19,143,075,671,821,496/147,684,515.80
  6. Step 6: Final answer
    x = 129,621,413.38

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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.