Home / 478,339,384.80-717,509,077.20-436,013,061.60

Finding the Fourth Proportional to 478,339,384.80, 717,509,077.20 and 436,013,061.60

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Solution

The fourth proportional to 478,339,384.80, 717,509,077.20 and 436,013,061.60 is: 654,019,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,339,384.80 : 717,509,077.20 = 436,013,061.60 : x
  2. Step 2: Convert to fraction form
    478,339,384.80/717,509,077.20 = 436,013,061.60/x
  3. Step 3: Cross multiply
    478,339,384.80x = 717,509,077.20 × 436,013,061.60
  4. Step 4: Simplify right side
    478,339,384.80x = 312,843,329,475,762,816
  5. Step 5: Solve for x
    x = 312,843,329,475,762,816/478,339,384.80
  6. Step 6: Final answer
    x = 654,019,592.40

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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.