Home / 930,985,225.65-1,396,281,883.28-470,490,505.65

Finding the Fourth Proportional to 930,985,225.65, 1,396,281,883.28 and 470,490,505.65

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Solution

The fourth proportional to 930,985,225.65, 1,396,281,883.28 and 470,490,505.65 is: 705,636,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,985,225.65 : 1,396,281,883.28 = 470,490,505.65 : x
  2. Step 2: Convert to fraction form
    930,985,225.65/1,396,281,883.28 = 470,490,505.65/x
  3. Step 3: Cross multiply
    930,985,225.65x = 1,396,281,883.28 × 470,490,505.65
  4. Step 4: Simplify right side
    930,985,225.65x = 656,937,369,291,988,992
  5. Step 5: Solve for x
    x = 656,937,369,291,988,992/930,985,225.65
  6. Step 6: Final answer
    x = 705,636,728.91

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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.