Home / 1,120,139,820.60-1,680,209,730.90-302,250,809.40

Finding the Fourth Proportional to 1,120,139,820.60, 1,680,209,730.90 and 302,250,809.40

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Solution

The fourth proportional to 1,120,139,820.60, 1,680,209,730.90 and 302,250,809.40 is: 453,376,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,139,820.60 : 1,680,209,730.90 = 302,250,809.40 : x
  2. Step 2: Convert to fraction form
    1,120,139,820.60/1,680,209,730.90 = 302,250,809.40/x
  3. Step 3: Cross multiply
    1,120,139,820.60x = 1,680,209,730.90 × 302,250,809.40
  4. Step 4: Simplify right side
    1,120,139,820.60x = 507,844,751,126,281,152
  5. Step 5: Solve for x
    x = 507,844,751,126,281,152/1,120,139,820.60
  6. Step 6: Final answer
    x = 453,376,214.10

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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.