Home / 130,390,897.10-179,900,197.53-78,160,875.62

Finding the Fourth Proportional to 130,390,897.10, 179,900,197.53 and 78,160,875.62

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Solution

The fourth proportional to 130,390,897.10, 179,900,197.53 and 78,160,875.62 is: 107,838,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,390,897.10 : 179,900,197.53 = 78,160,875.62 : x
  2. Step 2: Convert to fraction form
    130,390,897.10/179,900,197.53 = 78,160,875.62/x
  3. Step 3: Cross multiply
    130,390,897.10x = 179,900,197.53 × 78,160,875.62
  4. Step 4: Simplify right side
    130,390,897.10x = 14,061,156,963,155,762
  5. Step 5: Solve for x
    x = 14,061,156,963,155,762/130,390,897.10
  6. Step 6: Final answer
    x = 107,838,486.24

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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.