Home / 12,778,840.40-19,173,509.40-4,695,688.40

Finding the Fourth Proportional to 12,778,840.40, 19,173,509.40 and 4,695,688.40

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Solution

The fourth proportional to 12,778,840.40, 19,173,509.40 and 4,695,688.40 is: 7,045,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,840.40 : 19,173,509.40 = 4,695,688.40 : x
  2. Step 2: Convert to fraction form
    12,778,840.40/19,173,509.40 = 4,695,688.40/x
  3. Step 3: Cross multiply
    12,778,840.40x = 19,173,509.40 × 4,695,688.40
  4. Step 4: Simplify right side
    12,778,840.40x = 90,032,825,676,870.95
  5. Step 5: Solve for x
    x = 90,032,825,676,870.95/12,778,840.40
  6. Step 6: Final answer
    x = 7,045,461.31

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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.