Home / 900,334,460.19-1,242,434,870.03-498,466,119.49

Finding the Fourth Proportional to 900,334,460.19, 1,242,434,870.03 and 498,466,119.49

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Solution

The fourth proportional to 900,334,460.19, 1,242,434,870.03 and 498,466,119.49 is: 687,868,470.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,334,460.19 : 1,242,434,870.03 = 498,466,119.49 : x
  2. Step 2: Convert to fraction form
    900,334,460.19/1,242,434,870.03 = 498,466,119.49/x
  3. Step 3: Cross multiply
    900,334,460.19x = 1,242,434,870.03 × 498,466,119.49
  4. Step 4: Simplify right side
    900,334,460.19x = 619,311,688,381,056,768
  5. Step 5: Solve for x
    x = 619,311,688,381,056,768/900,334,460.19
  6. Step 6: Final answer
    x = 687,868,470.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.