Home / 268,624,815.40-402,937,223.10-86,890,364.20

Finding the Fourth Proportional to 268,624,815.40, 402,937,223.10 and 86,890,364.20

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Solution

The fourth proportional to 268,624,815.40, 402,937,223.10 and 86,890,364.20 is: 130,335,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,624,815.40 : 402,937,223.10 = 86,890,364.20 : x
  2. Step 2: Convert to fraction form
    268,624,815.40/402,937,223.10 = 86,890,364.20/x
  3. Step 3: Cross multiply
    268,624,815.40x = 402,937,223.10 × 86,890,364.20
  4. Step 4: Simplify right side
    268,624,815.40x = 35,011,362,064,895,656
  5. Step 5: Solve for x
    x = 35,011,362,064,895,656/268,624,815.40
  6. Step 6: Final answer
    x = 130,335,546.30

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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.