Finding the Fourth Proportional to 118,426,646.74, 163,378,728.93 and 79,281,035.59
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Solution
The fourth proportional to 118,426,646.74, 163,378,728.93 and 79,281,035.59 is: 109,374,327.31
Step by Step Solution
- Step 1: Write the proportion equation
118,426,646.74 : 163,378,728.93 = 79,281,035.59 : x - Step 2: Convert to fraction form
118,426,646.74/163,378,728.93 = 79,281,035.59/x - Step 3: Cross multiply
118,426,646.74x = 163,378,728.93 × 79,281,035.59 - Step 4: Simplify right side
118,426,646.74x = 12,952,834,822,948,294 - Step 5: Solve for x
x = 12,952,834,822,948,294/118,426,646.74 - Step 6: Final answer
x = 109,374,327.31
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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.