Finding the Fourth Proportional to 961,803,564.62, 1,327,176,944.55 and 538,440,408.59
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Solution
The fourth proportional to 961,803,564.62, 1,327,176,944.55 and 538,440,408.59 is: 742,985,077.81
Step by Step Solution
- Step 1: Write the proportion equation
961,803,564.62 : 1,327,176,944.55 = 538,440,408.59 : x - Step 2: Convert to fraction form
961,803,564.62/1,327,176,944.55 = 538,440,408.59/x - Step 3: Cross multiply
961,803,564.62x = 1,327,176,944.55 × 538,440,408.59 - Step 4: Simplify right side
961,803,564.62x = 714,605,696,294,729,856 - Step 5: Solve for x
x = 714,605,696,294,729,856/961,803,564.62 - Step 6: Final answer
x = 742,985,077.81
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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.