Home / 72,249,058.68-99,677,961.90-42,857,878.20

Finding the Fourth Proportional to 72,249,058.68, 99,677,961.90 and 42,857,878.20

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Solution

The fourth proportional to 72,249,058.68, 99,677,961.90 and 42,857,878.20 is: 59,128,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,249,058.68 : 99,677,961.90 = 42,857,878.20 : x
  2. Step 2: Convert to fraction form
    72,249,058.68/99,677,961.90 = 42,857,878.20/x
  3. Step 3: Cross multiply
    72,249,058.68x = 99,677,961.90 × 42,857,878.20
  4. Step 4: Simplify right side
    72,249,058.68x = 4,271,985,950,334,441
  5. Step 5: Solve for x
    x = 4,271,985,950,334,441/72,249,058.68
  6. Step 6: Final answer
    x = 59,128,603.59

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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.