Home / 470,308,032,157.20-705,462,048,235.80-421,820,205,622.80

Finding the Fourth Proportional to 470,308,032,157.20, 705,462,048,235.80 and 421,820,205,622.80

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Solution

The fourth proportional to 470,308,032,157.20, 705,462,048,235.80 and 421,820,205,622.80 is: 632,730,308,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,308,032,157.20 : 705,462,048,235.80 = 421,820,205,622.80 : x
  2. Step 2: Convert to fraction form
    470,308,032,157.20/705,462,048,235.80 = 421,820,205,622.80/x
  3. Step 3: Cross multiply
    470,308,032,157.20x = 705,462,048,235.80 × 421,820,205,622.80
  4. Step 4: Simplify right side
    470,308,032,157.20x = 297,578,146,245,906,832,293,888
  5. Step 5: Solve for x
    x = 297,578,146,245,906,832,293,888/470,308,032,157.20
  6. Step 6: Final answer
    x = 632,730,308,434.20

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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.