Home / 42,590,885.40-63,886,328.10-11,885,405.40

Finding the Fourth Proportional to 42,590,885.40, 63,886,328.10 and 11,885,405.40

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Solution

The fourth proportional to 42,590,885.40, 63,886,328.10 and 11,885,405.40 is: 17,828,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,590,885.40 : 63,886,328.10 = 11,885,405.40 : x
  2. Step 2: Convert to fraction form
    42,590,885.40/63,886,328.10 = 11,885,405.40/x
  3. Step 3: Cross multiply
    42,590,885.40x = 63,886,328.10 × 11,885,405.40
  4. Step 4: Simplify right side
    42,590,885.40x = 759,314,908,985,911.75
  5. Step 5: Solve for x
    x = 759,314,908,985,911.75/42,590,885.40
  6. Step 6: Final answer
    x = 17,828,108.10

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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.