Home / 1,120,149,339.60-1,680,224,009.40-302,260,328.40

Finding the Fourth Proportional to 1,120,149,339.60, 1,680,224,009.40 and 302,260,328.40

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Solution

The fourth proportional to 1,120,149,339.60, 1,680,224,009.40 and 302,260,328.40 is: 453,390,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,149,339.60 : 1,680,224,009.40 = 302,260,328.40 : x
  2. Step 2: Convert to fraction form
    1,120,149,339.60/1,680,224,009.40 = 302,260,328.40/x
  3. Step 3: Cross multiply
    1,120,149,339.60x = 1,680,224,009.40 × 302,260,328.40
  4. Step 4: Simplify right side
    1,120,149,339.60x = 507,865,060,866,808,704
  5. Step 5: Solve for x
    x = 507,865,060,866,808,704/1,120,149,339.60
  6. Step 6: Final answer
    x = 453,390,492.60

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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.