Home / 13,287,890.70-19,931,836.05-7,225,526.70

Finding the Fourth Proportional to 13,287,890.70, 19,931,836.05 and 7,225,526.70

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Solution

The fourth proportional to 13,287,890.70, 19,931,836.05 and 7,225,526.70 is: 10,838,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,890.70 : 19,931,836.05 = 7,225,526.70 : x
  2. Step 2: Convert to fraction form
    13,287,890.70/19,931,836.05 = 7,225,526.70/x
  3. Step 3: Cross multiply
    13,287,890.70x = 19,931,836.05 × 7,225,526.70
  4. Step 4: Simplify right side
    13,287,890.70x = 144,018,013,559,297.53
  5. Step 5: Solve for x
    x = 144,018,013,559,297.53/13,287,890.70
  6. Step 6: Final answer
    x = 10,838,290.05

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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.