Home / 30,369,913.30-45,554,869.95-28,031,572.90

Finding the Fourth Proportional to 30,369,913.30, 45,554,869.95 and 28,031,572.90

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Solution

The fourth proportional to 30,369,913.30, 45,554,869.95 and 28,031,572.90 is: 42,047,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369,913.30 : 45,554,869.95 = 28,031,572.90 : x
  2. Step 2: Convert to fraction form
    30,369,913.30/45,554,869.95 = 28,031,572.90/x
  3. Step 3: Cross multiply
    30,369,913.30x = 45,554,869.95 × 28,031,572.90
  4. Step 4: Simplify right side
    30,369,913.30x = 1,276,974,657,953,444.25
  5. Step 5: Solve for x
    x = 1,276,974,657,953,444.25/30,369,913.30
  6. Step 6: Final answer
    x = 42,047,359.35

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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.