Home / 154,151,439.04-212,709,434-84,518,496.24

Finding the Fourth Proportional to 154,151,439.04, 212,709,434 and 84,518,496.24

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Solution

The fourth proportional to 154,151,439.04, 212,709,434 and 84,518,496.24 is: 116,624,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,151,439.04 : 212,709,434 = 84,518,496.24 : x
  2. Step 2: Convert to fraction form
    154,151,439.04/212,709,434 = 84,518,496.24/x
  3. Step 3: Cross multiply
    154,151,439.04x = 212,709,434 × 84,518,496.24
  4. Step 4: Simplify right side
    154,151,439.04x = 17,977,881,497,741,528
  5. Step 5: Solve for x
    x = 17,977,881,497,741,528/154,151,439.04
  6. Step 6: Final answer
    x = 116,624,804.87

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Double scale
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1.5x scale

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.