Home / 153,785,064.31-212,223,388.72-84,170,445.20

Finding the Fourth Proportional to 153,785,064.31, 212,223,388.72 and 84,170,445.20

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Solution

The fourth proportional to 153,785,064.31, 212,223,388.72 and 84,170,445.20 is: 116,155,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,785,064.31 : 212,223,388.72 = 84,170,445.20 : x
  2. Step 2: Convert to fraction form
    153,785,064.31/212,223,388.72 = 84,170,445.20/x
  3. Step 3: Cross multiply
    153,785,064.31x = 212,223,388.72 × 84,170,445.20
  4. Step 4: Simplify right side
    153,785,064.31x = 17,862,937,110,097,594
  5. Step 5: Solve for x
    x = 17,862,937,110,097,594/153,785,064.31
  6. Step 6: Final answer
    x = 116,155,214.36

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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.