Home / 359,812,790,754.72-539,779,864,441.20-120,990,668,852.64

Finding the Fourth Proportional to 359,812,790,754.72, 539,779,864,441.20 and 120,990,668,852.64

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Solution

The fourth proportional to 359,812,790,754.72, 539,779,864,441.20 and 120,990,668,852.64 is: 181,506,406,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,812,790,754.72 : 539,779,864,441.20 = 120,990,668,852.64 : x
  2. Step 2: Convert to fraction form
    359,812,790,754.72/539,779,864,441.20 = 120,990,668,852.64/x
  3. Step 3: Cross multiply
    359,812,790,754.72x = 539,779,864,441.20 × 120,990,668,852.64
  4. Step 4: Simplify right side
    359,812,790,754.72x = 65,308,326,831,928,140,365,824
  5. Step 5: Solve for x
    x = 65,308,326,831,928,140,365,824/359,812,790,754.72
  6. Step 6: Final answer
    x = 181,506,406,970.53

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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.