Home / 418,779,868.80-577,904,955.20-233,140,880.64

Finding the Fourth Proportional to 418,779,868.80, 577,904,955.20 and 233,140,880.64

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Solution

The fourth proportional to 418,779,868.80, 577,904,955.20 and 233,140,880.64 is: 321,728,144.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,779,868.80 : 577,904,955.20 = 233,140,880.64 : x
  2. Step 2: Convert to fraction form
    418,779,868.80/577,904,955.20 = 233,140,880.64/x
  3. Step 3: Cross multiply
    418,779,868.80x = 577,904,955.20 × 233,140,880.64
  4. Step 4: Simplify right side
    418,779,868.80x = 134,733,270,181,547,744
  5. Step 5: Solve for x
    x = 134,733,270,181,547,744/418,779,868.80
  6. Step 6: Final answer
    x = 321,728,144.59

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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.