Home / 647,355,345.40-971,033,018.10-370,722,590.20

Finding the Fourth Proportional to 647,355,345.40, 971,033,018.10 and 370,722,590.20

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Solution

The fourth proportional to 647,355,345.40, 971,033,018.10 and 370,722,590.20 is: 556,083,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,355,345.40 : 971,033,018.10 = 370,722,590.20 : x
  2. Step 2: Convert to fraction form
    647,355,345.40/971,033,018.10 = 370,722,590.20/x
  3. Step 3: Cross multiply
    647,355,345.40x = 971,033,018.10 × 370,722,590.20
  4. Step 4: Simplify right side
    647,355,345.40x = 359,983,875,639,755,456
  5. Step 5: Solve for x
    x = 359,983,875,639,755,456/647,355,345.40
  6. Step 6: Final answer
    x = 556,083,885.30

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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.