Home / 30,227,813.80-45,341,720.70-19,478,271.40

Finding the Fourth Proportional to 30,227,813.80, 45,341,720.70 and 19,478,271.40

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Solution

The fourth proportional to 30,227,813.80, 45,341,720.70 and 19,478,271.40 is: 29,217,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,227,813.80 : 45,341,720.70 = 19,478,271.40 : x
  2. Step 2: Convert to fraction form
    30,227,813.80/45,341,720.70 = 19,478,271.40/x
  3. Step 3: Cross multiply
    30,227,813.80x = 45,341,720.70 × 19,478,271.40
  4. Step 4: Simplify right side
    30,227,813.80x = 883,178,341,537,598
  5. Step 5: Solve for x
    x = 883,178,341,537,598/30,227,813.80
  6. Step 6: Final answer
    x = 29,217,407.10

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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.