Home / 321,035,661.60-481,553,492.40-78,698,565.60

Finding the Fourth Proportional to 321,035,661.60, 481,553,492.40 and 78,698,565.60

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Solution

The fourth proportional to 321,035,661.60, 481,553,492.40 and 78,698,565.60 is: 118,047,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,035,661.60 : 481,553,492.40 = 78,698,565.60 : x
  2. Step 2: Convert to fraction form
    321,035,661.60/481,553,492.40 = 78,698,565.60/x
  3. Step 3: Cross multiply
    321,035,661.60x = 481,553,492.40 × 78,698,565.60
  4. Step 4: Simplify right side
    321,035,661.60x = 37,897,569,111,550,496
  5. Step 5: Solve for x
    x = 37,897,569,111,550,496/321,035,661.60
  6. Step 6: Final answer
    x = 118,047,848.40

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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.