Home / 388,977,995.60-536,791,240.13-210,361,880.04

Finding the Fourth Proportional to 388,977,995.60, 536,791,240.13 and 210,361,880.04

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Solution

The fourth proportional to 388,977,995.60, 536,791,240.13 and 210,361,880.04 is: 290,300,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,977,995.60 : 536,791,240.13 = 210,361,880.04 : x
  2. Step 2: Convert to fraction form
    388,977,995.60/536,791,240.13 = 210,361,880.04/x
  3. Step 3: Cross multiply
    388,977,995.60x = 536,791,240.13 × 210,361,880.04
  4. Step 4: Simplify right side
    388,977,995.60x = 112,920,414,461,698,080
  5. Step 5: Solve for x
    x = 112,920,414,461,698,080/388,977,995.60
  6. Step 6: Final answer
    x = 290,300,263.10

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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.