Home / 930,985,136.40-1,396,281,749.40-470,490,416.40

Finding the Fourth Proportional to 930,985,136.40, 1,396,281,749.40 and 470,490,416.40

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Solution

The fourth proportional to 930,985,136.40, 1,396,281,749.40 and 470,490,416.40 is: 705,636,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,985,136.40 : 1,396,281,749.40 = 470,490,416.40 : x
  2. Step 2: Convert to fraction form
    930,985,136.40/1,396,281,749.40 = 470,490,416.40/x
  3. Step 3: Cross multiply
    930,985,136.40x = 1,396,281,749.40 × 470,490,416.40
  4. Step 4: Simplify right side
    930,985,136.40x = 656,937,181,686,926,464
  5. Step 5: Solve for x
    x = 656,937,181,686,926,464/930,985,136.40
  6. Step 6: Final answer
    x = 705,636,595.05

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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.