Home / 287,713,055.20-431,569,582.80-195,880,050.40

Finding the Fourth Proportional to 287,713,055.20, 431,569,582.80 and 195,880,050.40

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Solution

The fourth proportional to 287,713,055.20, 431,569,582.80 and 195,880,050.40 is: 293,820,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,055.20 : 431,569,582.80 = 195,880,050.40 : x
  2. Step 2: Convert to fraction form
    287,713,055.20/431,569,582.80 = 195,880,050.40/x
  3. Step 3: Cross multiply
    287,713,055.20x = 431,569,582.80 × 195,880,050.40
  4. Step 4: Simplify right side
    287,713,055.20x = 84,535,871,629,970,976
  5. Step 5: Solve for x
    x = 84,535,871,629,970,976/287,713,055.20
  6. Step 6: Final answer
    x = 293,820,075.60

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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.