Home / 430,897,726.83-646,437,378.17-139,742,146.95

Finding the Fourth Proportional to 430,897,726.83, 646,437,378.17 and 139,742,146.95

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Solution

The fourth proportional to 430,897,726.83, 646,437,378.17 and 139,742,146.95 is: 209,642,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,897,726.83 : 646,437,378.17 = 139,742,146.95 : x
  2. Step 2: Convert to fraction form
    430,897,726.83/646,437,378.17 = 139,742,146.95/x
  3. Step 3: Cross multiply
    430,897,726.83x = 646,437,378.17 × 139,742,146.95
  4. Step 4: Simplify right side
    430,897,726.83x = 90,334,547,093,506,144
  5. Step 5: Solve for x
    x = 90,334,547,093,506,144/430,897,726.83
  6. Step 6: Final answer
    x = 209,642,663.37

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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.