Home / 470,308,032,158.20-705,462,048,237.30-421,820,205,623.80

Finding the Fourth Proportional to 470,308,032,158.20, 705,462,048,237.30 and 421,820,205,623.80

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Solution

The fourth proportional to 470,308,032,158.20, 705,462,048,237.30 and 421,820,205,623.80 is: 632,730,308,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,308,032,158.20 : 705,462,048,237.30 = 421,820,205,623.80 : x
  2. Step 2: Convert to fraction form
    470,308,032,158.20/705,462,048,237.30 = 421,820,205,623.80/x
  3. Step 3: Cross multiply
    470,308,032,158.20x = 705,462,048,237.30 × 421,820,205,623.80
  4. Step 4: Simplify right side
    470,308,032,158.20x = 297,578,146,247,245,016,596,480
  5. Step 5: Solve for x
    x = 297,578,146,247,245,016,596,480/470,308,032,158.20
  6. Step 6: Final answer
    x = 632,730,308,435.70

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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.