Home / 30,280,127.40-45,430,688.70-13,253,020.20

Finding the Fourth Proportional to 30,280,127.40, 45,430,688.70 and 13,253,020.20

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Solution

The fourth proportional to 30,280,127.40, 45,430,688.70 and 13,253,020.20 is: 19,884,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280,127.40 : 45,430,688.70 = 13,253,020.20 : x
  2. Step 2: Convert to fraction form
    30,280,127.40/45,430,688.70 = 13,253,020.20/x
  3. Step 3: Cross multiply
    30,280,127.40x = 45,430,688.70 × 13,253,020.20
  4. Step 4: Simplify right side
    30,280,127.40x = 602,093,835,041,011.75
  5. Step 5: Solve for x
    x = 602,093,835,041,011.75/30,280,127.40
  6. Step 6: Final answer
    x = 19,884,124.89

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1.5x scale

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.