Home / 543,215,208.84-749,655,075.40-305,102,290.11

Finding the Fourth Proportional to 543,215,208.84, 749,655,075.40 and 305,102,290.11

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Solution

The fourth proportional to 543,215,208.84, 749,655,075.40 and 305,102,290.11 is: 421,051,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,215,208.84 : 749,655,075.40 = 305,102,290.11 : x
  2. Step 2: Convert to fraction form
    543,215,208.84/749,655,075.40 = 305,102,290.11/x
  3. Step 3: Cross multiply
    543,215,208.84x = 749,655,075.40 × 305,102,290.11
  4. Step 4: Simplify right side
    543,215,208.84x = 228,721,480,293,550,752
  5. Step 5: Solve for x
    x = 228,721,480,293,550,752/543,215,208.84
  6. Step 6: Final answer
    x = 421,051,319.21

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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.