Home / 78,834,369.60-118,171,072.80-53,277,962.40

Finding the Fourth Proportional to 78,834,369.60, 118,171,072.80 and 53,277,962.40

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Solution

The fourth proportional to 78,834,369.60, 118,171,072.80 and 53,277,962.40 is: 79,862,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,834,369.60 : 118,171,072.80 = 53,277,962.40 : x
  2. Step 2: Convert to fraction form
    78,834,369.60/118,171,072.80 = 53,277,962.40/x
  3. Step 3: Cross multiply
    78,834,369.60x = 118,171,072.80 × 53,277,962.40
  4. Step 4: Simplify right side
    78,834,369.60x = 6,295,913,973,406,062
  5. Step 5: Solve for x
    x = 6,295,913,973,406,062/78,834,369.60
  6. Step 6: Final answer
    x = 79,862,552.40

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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.