Home / 472,392,430.80-708,588,646.20-424,775,317.20

Finding the Fourth Proportional to 472,392,430.80, 708,588,646.20 and 424,775,317.20

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Solution

The fourth proportional to 472,392,430.80, 708,588,646.20 and 424,775,317.20 is: 637,162,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,430.80 : 708,588,646.20 = 424,775,317.20 : x
  2. Step 2: Convert to fraction form
    472,392,430.80/708,588,646.20 = 424,775,317.20/x
  3. Step 3: Cross multiply
    472,392,430.80x = 708,588,646.20 × 424,775,317.20
  4. Step 4: Simplify right side
    472,392,430.80x = 300,990,966,953,923,584
  5. Step 5: Solve for x
    x = 300,990,966,953,923,584/472,392,430.80
  6. Step 6: Final answer
    x = 637,162,975.80

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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.