Home / 540,575,281.98-745,965,162.45-305,611,897.05

Finding the Fourth Proportional to 540,575,281.98, 745,965,162.45 and 305,611,897.05

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Solution

The fourth proportional to 540,575,281.98, 745,965,162.45 and 305,611,897.05 is: 421,728,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,575,281.98 : 745,965,162.45 = 305,611,897.05 : x
  2. Step 2: Convert to fraction form
    540,575,281.98/745,965,162.45 = 305,611,897.05/x
  3. Step 3: Cross multiply
    540,575,281.98x = 745,965,162.45 × 305,611,897.05
  4. Step 4: Simplify right side
    540,575,281.98x = 227,975,828,429,555,936
  5. Step 5: Solve for x
    x = 227,975,828,429,555,936/540,575,281.98
  6. Step 6: Final answer
    x = 421,728,177.42

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1.5x scale

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.