Home / 418,925,477.80-628,671,651.90-188,776,095.40

Finding the Fourth Proportional to 418,925,477.80, 628,671,651.90 and 188,776,095.40

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Solution

The fourth proportional to 418,925,477.80, 628,671,651.90 and 188,776,095.40 is: 283,291,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,925,477.80 : 628,671,651.90 = 188,776,095.40 : x
  2. Step 2: Convert to fraction form
    418,925,477.80/628,671,651.90 = 188,776,095.40/x
  3. Step 3: Cross multiply
    418,925,477.80x = 628,671,651.90 × 188,776,095.40
  4. Step 4: Simplify right side
    418,925,477.80x = 118,678,179,734,349,984
  5. Step 5: Solve for x
    x = 118,678,179,734,349,984/418,925,477.80
  6. Step 6: Final answer
    x = 283,291,864.60

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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.