Home / 780,281,373.57-1,169,602,751.83-262,532,065.20

Finding the Fourth Proportional to 780,281,373.57, 1,169,602,751.83 and 262,532,065.20

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Solution

The fourth proportional to 780,281,373.57, 1,169,602,751.83 and 262,532,065.20 is: 393,522,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,281,373.57 : 1,169,602,751.83 = 262,532,065.20 : x
  2. Step 2: Convert to fraction form
    780,281,373.57/1,169,602,751.83 = 262,532,065.20/x
  3. Step 3: Cross multiply
    780,281,373.57x = 1,169,602,751.83 × 262,532,065.20
  4. Step 4: Simplify right side
    780,281,373.57x = 307,058,225,896,490,688
  5. Step 5: Solve for x
    x = 307,058,225,896,490,688/780,281,373.57
  6. Step 6: Final answer
    x = 393,522,434.73

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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.