Home / 538,272,030.40-807,408,045.60-354,606,020.80

Finding the Fourth Proportional to 538,272,030.40, 807,408,045.60 and 354,606,020.80

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Solution

The fourth proportional to 538,272,030.40, 807,408,045.60 and 354,606,020.80 is: 531,909,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,272,030.40 : 807,408,045.60 = 354,606,020.80 : x
  2. Step 2: Convert to fraction form
    538,272,030.40/807,408,045.60 = 354,606,020.80/x
  3. Step 3: Cross multiply
    538,272,030.40x = 807,408,045.60 × 354,606,020.80
  4. Step 4: Simplify right side
    538,272,030.40x = 286,311,754,212,120,960
  5. Step 5: Solve for x
    x = 286,311,754,212,120,960/538,272,030.40
  6. Step 6: Final answer
    x = 531,909,031.20

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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.