Home / 389,617,721.98-537,653,277.20-213,406,501.01

Finding the Fourth Proportional to 389,617,721.98, 537,653,277.20 and 213,406,501.01

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Solution

The fourth proportional to 389,617,721.98, 537,653,277.20 and 213,406,501.01 is: 294,490,466.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,617,721.98 : 537,653,277.20 = 213,406,501.01 : x
  2. Step 2: Convert to fraction form
    389,617,721.98/537,653,277.20 = 213,406,501.01/x
  3. Step 3: Cross multiply
    389,617,721.98x = 537,653,277.20 × 213,406,501.01
  4. Step 4: Simplify right side
    389,617,721.98x = 114,738,704,641,656,848
  5. Step 5: Solve for x
    x = 114,738,704,641,656,848/389,617,721.98
  6. Step 6: Final answer
    x = 294,490,466.35

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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.