Home / 289,172,862.40-433,756,528.80-70,824,164.80

Finding the Fourth Proportional to 289,172,862.40, 433,756,528.80 and 70,824,164.80

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Solution

The fourth proportional to 289,172,862.40, 433,756,528.80 and 70,824,164.80 is: 106,235,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,172,862.40 : 433,756,528.80 = 70,824,164.80 : x
  2. Step 2: Convert to fraction form
    289,172,862.40/433,756,528.80 = 70,824,164.80/x
  3. Step 3: Cross multiply
    289,172,862.40x = 433,756,528.80 × 70,824,164.80
  4. Step 4: Simplify right side
    289,172,862.40x = 30,720,443,878,807,144
  5. Step 5: Solve for x
    x = 30,720,443,878,807,144/289,172,862.40
  6. Step 6: Final answer
    x = 106,235,570.05

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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.