Home / 1,120,140,020.48-1,680,210,030.72-302,251,009.28

Finding the Fourth Proportional to 1,120,140,020.48, 1,680,210,030.72 and 302,251,009.28

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Solution

The fourth proportional to 1,120,140,020.48, 1,680,210,030.72 and 302,251,009.28 is: 453,376,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,140,020.48 : 1,680,210,030.72 = 302,251,009.28 : x
  2. Step 2: Convert to fraction form
    1,120,140,020.48/1,680,210,030.72 = 302,251,009.28/x
  3. Step 3: Cross multiply
    1,120,140,020.48x = 1,680,210,030.72 × 302,251,009.28
  4. Step 4: Simplify right side
    1,120,140,020.48x = 507,845,177,587,499,776
  5. Step 5: Solve for x
    x = 507,845,177,587,499,776/1,120,140,020.48
  6. Step 6: Final answer
    x = 453,376,513.92

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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.