Finding the Fourth Proportional to 101,331,854.21, 139,850,909.49 and 56,680,307.75
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Solution
The fourth proportional to 101,331,854.21, 139,850,909.49 and 56,680,307.75 is: 78,226,068.70
Step by Step Solution
- Step 1: Write the proportion equation
101,331,854.21 : 139,850,909.49 = 56,680,307.75 : x - Step 2: Convert to fraction form
101,331,854.21/139,850,909.49 = 56,680,307.75/x - Step 3: Cross multiply
101,331,854.21x = 139,850,909.49 × 56,680,307.75 - Step 4: Simplify right side
101,331,854.21x = 7,926,792,588,311,341 - Step 5: Solve for x
x = 7,926,792,588,311,341/101,331,854.21 - Step 6: Final answer
x = 78,226,068.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.