Home / 127,203,038.40-190,804,557.60-86,892,254.40

Finding the Fourth Proportional to 127,203,038.40, 190,804,557.60 and 86,892,254.40

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Solution

The fourth proportional to 127,203,038.40, 190,804,557.60 and 86,892,254.40 is: 130,338,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,203,038.40 : 190,804,557.60 = 86,892,254.40 : x
  2. Step 2: Convert to fraction form
    127,203,038.40/190,804,557.60 = 86,892,254.40/x
  3. Step 3: Cross multiply
    127,203,038.40x = 190,804,557.60 × 86,892,254.40
  4. Step 4: Simplify right side
    127,203,038.40x = 16,579,438,159,658,654
  5. Step 5: Solve for x
    x = 16,579,438,159,658,654/127,203,038.40
  6. Step 6: Final answer
    x = 130,338,381.60

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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.