Home / 992,869,106.40-1,489,299,661.44-302,774,378.40

Finding the Fourth Proportional to 992,869,106.40, 1,489,299,661.44 and 302,774,378.40

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Solution

The fourth proportional to 992,869,106.40, 1,489,299,661.44 and 302,774,378.40 is: 454,160,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,869,106.40 : 1,489,299,661.44 = 302,774,378.40 : x
  2. Step 2: Convert to fraction form
    992,869,106.40/1,489,299,661.44 = 302,774,378.40/x
  3. Step 3: Cross multiply
    992,869,106.40x = 1,489,299,661.44 × 302,774,378.40
  4. Step 4: Simplify right side
    992,869,106.40x = 450,921,779,243,826,432
  5. Step 5: Solve for x
    x = 450,921,779,243,826,432/992,869,106.40
  6. Step 6: Final answer
    x = 454,160,348.37

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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.