Home / 472,393,985.20-708,590,977.80-355,996,596.40

Finding the Fourth Proportional to 472,393,985.20, 708,590,977.80 and 355,996,596.40

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Solution

The fourth proportional to 472,393,985.20, 708,590,977.80 and 355,996,596.40 is: 533,994,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,985.20 : 708,590,977.80 = 355,996,596.40 : x
  2. Step 2: Convert to fraction form
    472,393,985.20/708,590,977.80 = 355,996,596.40/x
  3. Step 3: Cross multiply
    472,393,985.20x = 708,590,977.80 × 355,996,596.40
  4. Step 4: Simplify right side
    472,393,985.20x = 252,255,976,336,547,936
  5. Step 5: Solve for x
    x = 252,255,976,336,547,936/472,393,985.20
  6. Step 6: Final answer
    x = 533,994,894.60

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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.